KDDI Breach Affects Six Japanese ISPs, Exposes 14.2 Email Credentials

Customers of the affected Japanese email services are “strongly advised” to change their email passwords

Phishing attack on healthcare firm Xsolis impacts 1.4 million people

Healthcare technology company Xsolis confirmed that a phishing attack resulted in unauthorized access to its network. The company develops AI-powered software for hospitals, health systems, and health plans and serves more than 600 hospitals and health…

SuperOps and Guardz bundle IT operations and security into one product for MSPs

SuperOps and Guardz announced a strategic partnership, combining their platforms into a single bundled offering for managed service providers (MSPs). The package brings professional services automation (PSA), remote monitoring and management (RMM), mobile…

Agentic AI Security: Wrong Context, Wrong Decisions at Machine Speed

Context is the central plank of AI in general, and agentic AI in particular. If an AI system doesn’t have the correct context, it cannot make the correct decisions. The post Agentic AI Security: Wrong Context, Wrong Decisions at Machine Speed appeared first…

Iran-Linked MuddyWater Poses as Ransomware Gang to Mask Cyber Espionage

An NCC Group report warns state-backed hackers are attempting to hide activity by posing as ransomware groups and deploying commercially available malware

New ‘Mistic’ RAT Opens Door to Several Ransomware Families

Mistic is used by Woodgnat, an initial access broker working with Qilin, Interlock, Rhysida, Akira, 8Base, and Black Basta. The post New ‘Mistic’ RAT Opens Door to Several Ransomware Families appeared first on SecurityWeek .

Cisco Unified CM flaw actively exploited to drop webshells (CVE-2026-20230)

CVE-2026-20230, a server-side request forgery (SSRF) vulnerability affecting Cisco’s Unified Communications Manager (Unified CM), is being exploited to drop webshells and achieve remote code execution capability on the underlying server. “Our honeypots are…

Dawn of the Apex Agentic Adversary

We are standing at the end of an era we never thought to mourn: the era of human-speed threats. For years, cybersecurity moved to a rhythm organizations could follow. A researcher found a bug, a CVE was cataloged, a vendor navigated a patch cycle, and weeks…

Exploitable CI/CD Vulnerabilities Expose Millions of Repositories to Hijacking

The security defects allow unauthenticated users to take control of the open source software supply chain. The post Exploitable CI/CD Vulnerabilities Expose Millions of Repositories to Hijacking appeared first on SecurityWeek .

Stealthy Mistic backdoor linked to ransomware access broker KongTuke

A new backdoor dubbed Mistic has been observed in financially motivated attacks targeting organizations in the insurance, education, IT, and professional services sectors. [...]

BeyondTrust, LastPass Impacted by Klue-Salesforce Incident

Over a dozen Klue customers have confirmed that hackers stole data from their Salesforce instances. The post BeyondTrust, LastPass Impacted by Klue-Salesforce Incident appeared first on SecurityWeek .

U.S. CISA adds Ubiquiti UniFi OS and Lantronix EDS5000 plugin flaws to its Known Exploited Vulnerabilities catalog

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Ubiquiti UniFi OS and Lantronix EDS5000 flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Ubiquiti UniFi OS and…

LastPass customer data exposed through Klue supply chain attack

LastPass disclosed that attackers used OAuth tokens compromised in a supply chain attack on Klue, a market intelligence platform that integrates with CRM and sales tools across organizations, to access customer data stored in its Salesforce environment. “On…

FortiBleed: The Broker Who Turned 73,000 Firewalls Into a Product Catalog

FortiBleed exposed valid credentials for 73,000+ Fortinet firewalls, revealing a large-scale access-brokering operation targeting organizations worldwide. In mid-June 2026, researcher Volodymyr “Bob” Diachenko found a live, exposed server containing working…

AI Is Making Attacks Cheaper, Faster and More Covert, Says ReliaQuest

New ReliaQuest study reveals the six ways AI is practically being used in attacks today

Webinar Today: Modern Exposure Validation in the AI Era

The exploit timeline collapsed. Make sure your validation didn't. The post Webinar Today: Modern Exposure Validation in the AI Era appeared first on SecurityWeek .

Qodo expands platform to help teams govern AI-generated code and engineering standards

Qodo has announced three new platform capabilities: Cross-Repo Code Review, Custom Rules Miner, and Skill Review Standards. These new capabilities address a set of governance gaps that have emerged as AI-generated code reaches enterprise scale. AI agents have…

Brinqa BYOAI lets organizations use any AI platform with trusted risk data

Brinqa BYOAI (Bring Your Own AI), a capability that enables organizations to connect any AI agent, large language model (LLM), or automation platform to Brinqa’s exposure intelligence layer. As enterprises adopt AI, they need to ensure that AI systems use…

Cequence introduces behavioral bot detection and biometric verification without CAPTCHAs

Cequence Security has announced the launch of Intent Graph and Biometric Check, two new capabilities that extend the behavioral architecture Cequence has built since its inception. They provide enterprises with bot defense that works across web, mobile, API,…

New Secure Code Warrior framework helps CISOs govern AI-driven software development

Secure Code Warrior has introduced its new SCW AI Adoption Model, a practical framework that maps the progression of AI use in software development, from minimal AI assistance to fully autonomous agentic orchestration. The framework helps CISOs assess their…

DigiCert brings independent trust validation to confidential computing environments

DigiCert has announced it is bringing independent trust validation to confidential computing environments, in collaboration with Google Cloud. By applying the proven principles of Public Key Infrastructure (PKI) to cloud infrastructure, DigiCert will provide…

Cisco Unified CM Flaw Exploited After PoC Reveals File-Write Path to Root

Threat actors have begun to exploit a recently disclosed critical security flaw impacting Cisco Unified Communications Manager (Unified CM) and Unified Communications Manager Session Management Edition (Unified CM SME). The vulnerability, tracked as…

Linux Process Name Masquerading, (Wed, Jun 24th)

In a previous diary, I talked about stack strings&&#x23&#x3b;x26&#x3b;&#x23&#x3b;x5b&#x3b; 1 &&#x23&#x3b;x26&#x3b;&#x23&#x3b;x5d&#x3b; with a practical example of them. Since my SEC670 class,…

Anthropic’s Mythos Model Found Vulnerabilities in Classified US Government Systems, Official Says

Come vulnerabilities were found within hours, but that does not mean the model was able to exploit them within that time, the official said. The post Anthropic’s Mythos Model Found Vulnerabilities in Classified US Government Systems, Official Says appeared…

Samsung KNOX Kernel UAF Exposes Millions of Galaxy Devices

Samsung’s KNOX flaw (CVE-2026-20971) is a kernel UAF in PROCA/FIVE that can enable corruption via a race; Samsung patched it in Jan 2026. Experts found a nasty kernel flaw in Samsung’s KNOX stack, and the uncomfortable part is where it lived: inside the…

Cisco Unified CM flaw CVE-2026-20230 now exploited in attacks

A high-severity SSRF vulnerability, tracked as CVE-2026-20230, in Cisco Unified Communications Manager Server is now being exploited in attacks. [...]

Healthtech firm Xolis suffers data breach impacting 1.4 million people

Healthcare technology company Xsolis says that sensitive data belonging to nearly 1.4 million individuals was compromised in a phishing attack that gave attackers access to its network. [...]

Dialog Claims It Was Hacked. A Misconfigured Website Left Its Members Exposed

The private events group, cofounded by Peter Thiel, says a “criminal” hacker is behind a breach that exposed members’ personal details. WIRED found no evidence a break-in was needed to access the files.

Five Eyes agencies sound alarm about AI’s threat to cybersecurity

"The timeline is not years, it is months,” the nations of the Five Eyes intelligence alliance said in a joint alert about the cybersecurity concerns of artificial intelligence.

FortiBleed Targeted FortiGate Firewalls in 110 Million-Credential Harvesting Operation

A Russian-speaking initial access broker (IAB) driven by financial gain is assessed to be behind a large-scale credential-harvesting operation known as FortiBleed that has targeted over 430,000 FortiGate firewalls globally. The campaign, active since February…

Dragos Unveils AI for OT Security

Named EmberAI, the new capability is built on Dragos’ massive operational technology cybersecurity dataset. The post Dragos Unveils AI for OT Security appeared first on SecurityWeek .

DifyTap: Four Bugs Put over 1 million AI Apps at Risk

Four flaws in Dify exposed cross-tenant data, documents and AI conversations. Two critical bugs enabled unauthenticated access and data theft. Zafran Labs researchers disclosed four vulnerabilities in Dify, the open-source AI platform used by major companies…

Fake AI Agent Skill Passed Security Scans and Reportedly Reached 26,000 Agents

Security firm AIR built a fake AI agent skill, pushed it through a popular skill marketplace and an Instagram ad, and says it reached roughly 26,000 agents, including some on corporate accounts. Every skill security scanner the firm tested it against marked…

GitHub Updates actions/checkout to Block Common Pwn Request Attack Patterns

GitHub is moving to strengthen software supply chain security by updating "actions/checkout" to block pwn request attacks that exploit the risky use of the "pull_request_target workflow" trigger to run malicious code with the workflow's full privileges.…

OpenAI Expands Daybreak to Help Defenders Patch Flaws

OpenAI expanded Daybreak with a full GPT-5.5-Cyber release to help defenders patch software flaws

Webinar: Why email security teams are drowning in alerts

Phishing, BEC, and account takeover attacks continue to overwhelm security teams with alerts and investigations. This webinar explores how behavioral AI can help automate detection and response workflows, reducing alert fatigue and improving operational…

Agentic AI: The Weapon That No Longer Needs a Warrior

Every weapon begins as an extension of the hand that holds it. The spear lengthened the reach of the arm. The bow sent the point flying without the throw. The rifle placed a man's death a quarter mile beyond his sight, and the aircraft carried that death…

Five Eyes Group Issues Urgent Call to Tackle Frontier AI Threats

The Five Eyes Alliance has published a rare call to action for organizations facing AI threats

OpenAI Expands Daybreak With GPT-5.5-Cyber to Help Defenders Patch Security Flaws

OpenAI on Monday said it's releasing an improved version of its GPT‑5.5‑Cyber model to trusted defenders as part of the Daybreak initiative the artificial intelligence (AI) company announced last month. Calling GPT‑5.5‑Cyber its "strongest model yet for…

CVE-2024-40766: The Patch Fixed the Bug. Nobody Fixed the Configuration., (Tue, Jun 23rd)

The vulnerability 

OpenAI Launches Full-Scale Effort to Patch Open-Source Bugs as It Takes on Anthropic’s Mythos

Amid concerns about AI models’ cybersecurity capabilities, OpenAI revealed an improved version of GPT-5.5-Cyber and its “Patch the Planet” initiative to fix open-source software bugs.

Researchers Detail DifyTap Flaws in Dify That Could Expose AI Chats Across Tenants

Cybersecurity researchers have disclosed details of four vulnerabilities in Dify, an open-source agentic workflow platform with more than 146,000 GitHub stars, that could allow attackers to stealthily read artificial intelligence (AI) conversions from other…

GentleKiller Framework Disables Victims' Security Software

ESET details GentleKiller, the EDR-killer framework the Gentlemen ransomware gang gives affiliates

Stop Your Legacy Infrastructure from Hijacking Your AI Agents

Earlier this month, I spoke at the Gartner Security & Risk Management Summit about a blind spot most security programs are still not accounting for - how attackers are circumventing AI security programs by using legacy infrastructure to hijack AI agents. AI…

Microsoft Attributes Mastra AI Supply Chain Attack to North Korea

North Korean threat actor Sapphire Sleet has been linked to a supply chain attack targeting Mastra, according to Microsoft security researchers

World Cup Scams Are Getting Harder to Spot

From fake tickets to cloned websites, AI is magnifying World Cup scams. Can fans distinguish between what’s real and what’s not?

INTERPOL Warns Phishing, Ransomware, and AI Scams Are Rising Across Asia-Pacific

A new report from INTERPOL has revealed a "dramatic increase" in cybercrime in Asia and the South Pacific, fueled by rapid digitalization, internet penetration, new technologies, organized criminal networks, and a disparity in cybersecurity maturity.…

AutoJack Attack Lets One Web Page Hijack AI Agent for Host Code Execution

Microsoft researchers have detailed an exploit chain, named AutoJack, that turns an AI browsing agent into a delivery vehicle for remote code execution. Steer the agent to load an attacker's web page, and that page's JavaScript can reach a privileged local…

Operation Endgame Disrupts SocGholish Servers, Cleans 14,971 WordPress Sites

Dutch law enforcement authorities, along with counterparts from Canada , Germany, and the U.S., have disrupted malicious infrastructure associated with SocGholish and cleaned up nearly 15,000 infected WordPress websites. "With these actions we deprive…

From Assistive to Agentic: The AI Shift That's Redefining Threat Management

Introduction The average enterprise security team has 40 or more security tools, giving a lot of visibility into internal telemetry and asset data. But often, these tools are working in siloes, generating (overlapping) alerts and data. And yet, breach dwell…

AWS Unveils 'Continuum,' an AI-Powered Vulnerability Management Platform

Working with frontier AI models, this new platform aims to help discovering, prioritizing, validating and remediating code vulnerabilities

Forget Data Leakage: Shadow AI's Real Threat Is Access Control

The first wave of enterprise AI concern was straightforward. It was simply employees pasting sensitive data into public AI tools. Security teams responded with usage policies, domain blocks, and data loss prevention rules. That response made sense at the…

eBanking Phishing Delivered Through IPv4-Mapped IPv6 Address, (Fri, Jun 19th)

I detected an interesting phishing email this morning. It targets a major Belgian bank: 

‘Popa’ Botnet Linked to Publicly-Traded Israeli Firm

For the past four years, a sprawling Android-based botnet called Popa has forced millions of consumer TV boxes to relay Internet traffic linked to advertising fraud, account takeovers, and mass data-scraping efforts. This week, researchers from multiple…

Orphaned AI Agents: How to Find Hidden Access Risks Inside Your Network

If an autonomous AI agent interacts with your company's core intellectual property today, can your security team instantly name the person who authorized it? For most enterprises, the answer is a simple no. The rush to adopt internal AI tools has left a…

ThreatsDay Bulletin: Claude Chat Abuse, NastyC2 npm Packages, Device-Code Phishing + 25 More Stories

The internet did not break this week. It got used exactly as designed, which is worse. Searches were siphoned through shady browser add-ons. AI chat links turned into malware delivery paths. macOS attacks ran in memory and left almost nothing behind. Cloud…

Fake GitHub Stars and AI Videos Mask a Crypto Clipper

A Rust crypto clipper hides behind fake GitHub stars and AI-narrated YouTube videos

Cybercriminals Are Worried About AI Taking Their Jobs Too

Analysis of chatter on underground forums by Sophos finds that hackers fear AI could take work away from them

Crypto Clipper Campaign Abuses Fake Reviews, AI Narrators, and VirusTotal Comments

An unknown threat actor has been observed leveraging paid or promoted posts on legitimate news websites to drum up buzz for their warez, according to new findings from Check Point Research. The threat actor also has at their disposal a dedicated WordPress…

North Korean Hiring Fraud Runs on AI and US Laptop Farms

Nisos infiltrated a North Korean IT-worker fraud cell running on AI interviews and a US laptop farm

Malicious JetBrains Plugins Steal AI API Keys as Chrome Extensions Capture Chatbot Chats

Cybersecurity researchers have flagged a "coordinated malware campaign" on the JetBrains Marketplace that has published no less than 15 malicious plugins capable of exfiltrating artificial intelligence (AI) provider keys. "Every plugin poses as an AI coding…

Sensitive Enterprise Data Uploads to AI Models Double in a Year

The rise of AI-assistants and applications in the enterprise has seen a 93% increase in employees attempting to upload sensitive data, bringing security challenges

AI Threats and Alert Fatigue Challenge Cybersecurity Teams

Filigran survey at Infosecurity Europe 2026 reveals AI-powered attacks as the top concern, with false positives, alert fatigue and manual processes draining security teams

Staffing Is Top SOC Challenge Even as AI Proliferates, Says SANS

SANS Institute study finds few SOCs have built AI into defined workflows, despite widespread adoption

145 Mastra npm Packages Compromised via Hijacked Contributor Account

As many as 145 npm packages associated with the Mastra namespace ("@mastra/*"), a popular open-source JavaScript and TypeScript framework for building artificial intelligence (AI) applications, have been compromised as part of a software supply chain attack…

Google Vertex AI SDK Flaw Let Attackers Hijack Model Uploads via Bucket Squatting

A flaw in the Google Cloud Vertex AI SDK for Python let an attacker with no access to a victim's project hijack the victim's machine learning model upload and run code inside Google's serving infrastructure. Palo Alto Networks Unit 42, which found and…

‘Dangerous’ AI Models Are Coming No Matter What

The US government crackdown on Anthropic’s Claude Fable 5 and Mythos 5 hides a glaring truth: AI models with advanced hacking capabilities will soon be the norm.

Chainguard, JPMorgan, BNY Team Up to Secure Open Source from AI Threats

Athena is a new an industry coalition to fix the vulnerabilities frontier AI models find before attackers can exploit them

Cybersecurity Experts Urge US to Lift Ban on Anthropic's Frontier AI Models

Access to two Anthropic large language models, Mythos 5 and Fable 5, has effectively been banned to any non-US nationals by the Trump administration

UK Government Finds 400+ Vulnerabilities in AI Hackathons

Government departments find hundreds of vulnerabilities after testing frontier models

The FCC Wants to Kill Burner Phones

Plus: AI bug hunting fuels Microsoft’s biggest-ever Patch Tuesday, ShinyHunters ransomware gang exploits an Oracle zero-day, and more.

Grok Is Still Hosting Sexualized Deepfakes of Famous Women

A WIRED investigation found dozens of “nudified” deepfake images and videos on Grok's website, including nonconsensual depictions of celebrities and at least one prominent US politician.

Cybercriminals Use Fake AI Guides and Dev Tools to Spread AsyncRAT Malware

Fake AI guides hide a multi-stage chain that drops AsyncRAT, with signs of AI-assisted coding

Most Cybersecurity Teams Struggle to Find Time for Training on New Cyber Threats

Organizations are aware of the challenges that new technologies like AI bring: but cybersecurity staff struggle to make time for the required training during working hours

Signal Alums Reveal ‘Encrypted Spaces,’ a System for Making Private Collaboration Apps

The new open-source project could serve as the basis for a future of apps with features as complex as Slack, Discord, or Google Docs—but with added protection against surveillance.

New “Agentjacking” Attacks Could Hijack AI Coding Agents

Tenet Security researchers reveal how new “agentjacking” attacks could trick coding agents into executing arbitrary code

CISA Tells US Agencies to Fix Security Bugs in as Little as 3 Days Thanks to AI Threats

“Defenders cannot afford to take weeks to patch,” one Cybersecurity and Infrastructure Security Agency official warned on Wednesday.

Who Runs the Ransomware Group ‘The Gentlemen?’

A cybercrime group known as The Gentlemen has emerged as the second most active ransomware gang by victim count, rapidly attracting a talented pool of hackers through an aggressive recruitment strategy that promises affiliates 90 percent of any ransom paid by…

New Fable 5 Is a "Mythos-Class" LLM Available to All, Anthropic Announces

Anthropic unveils Claude Mythos 5 and Fable 5, a restricted-access frontier AI model and guardrailed version for everyone to use

A Record-Breaking Patch Tuesday for June 2026

Microsoft today released software updates to plug nearly 200 security holes across its Windows operating systems and supported software, a record number of fixes for the company's monthly Patch Tuesday cycle. Nearly three dozen of those bugs earned…

AI Coding Adoption Hits 97% but Governance Lags Behind

Most dev teams use AI coding assistants but only 30% have full governance in place

OpenAI Unveils ChatGPT Account Security Controls

OpenAI brings Lockdown Mode and Active Sessions to ChatGPT to curb prompt injection data theft

Infosecurity Europe: Prompt Injection Remains Unsolved, OWASP Researcher Warns

At Infosecurity Europe 2026, OWASP’s Ariel Fogel warned that prompt injection remains an “unresolved problem” within generative AI architecture

Meta AI Bug Exposes Over 20,000 Instagram Accounts

Meta confirms an AI tool vulnerability led to unauthorized access to Instagram accounts after a failure in email verification during password reset

Infosecurity Europe: Practical Lessons From Lloyds' Agentic AI Security Playbook

Lloyds Banking Group shared its approach for securing agentic AI workflows, with a mix of hands on experimentation and cross functional governance

Infosecurity Europe: OWASP Introduces Agentic AI Security Maturity Framework

The OWASP agentic AI security framework helps organizations assess governance maturity vs adoption and adjust governance as needed

Infosecurity Europe: AI Coding Tools Need Built-In Security for Agentic Development Era

Ox Security field CTO, Boaz Barzel, makes the case for vibe security to tackle AI agent coding risks

Infosecurity Europe: AI Adoption Creates New Opportunities for Attackers to Distribute Malware, Microsoft Warns

Microsoft Detection and Response Team (DART) details how it has uncovered malicious AI applications as cyber criminals manipulate organizations adopting AI tools

Infosecurity Europe: Mythos Outperforms GPT5.5 on Google Chrome Vulnerability Exploits, Says New Benchmark

A Bugcrowd researcher has unveiled ExploitBench, an independent benchmark of AI models for vulnerability exploitation

Infosecurity Europe: How Proton Fights Against Cybercriminals Using Its Services

Proton uses machine learning models to detect abuse of its services – especially email addresses used by cybercriminals

Infosecurity Europe: Vulnerability Management Innovator Konvu Wins Cyber Startup Award

Inaugural Infosecurity Europe Cyber Startup Award Winner Impresses Panel with Ability Help Prioritize Vulnerabilities in AI era

Trump Signs Order Inviting Voluntary Review of Frontier AI Models

Trump's executive order invites voluntary pre-release review of frontier AI models

Anthropic Expands Mythos Access to 150 More Organizations

Anthropic widens Project Glasswing access to 150 more firms as patching becomes the bottleneck

Infosecurity Europe: Patch Responsibility Remains Up for Grabs as AI Unearths Decades of Flaws

The emergence of AI models capable to autonomously find and fix vulnerabilities at scale is having a significant impact on patching management, experts say

Infosecurity Europe: AI-Powered Cybercrime Tools Surge on Dark Web

Halcyon’s Cynthia Kaiser lifts the lid on the dark web market for AI cybercrime tools

Infosecurity Europe: Cybersecurity Teams Which Don’t Leverage AI are "Doomed to Fail"

Humans still need to be part of cyber defense, but refusing to deploy AI is no longer optional against AI-enhanced cyber threats, warns Dataminr’s Joe Slowik

Infosecurity Europe: Bayer Reinvents Security Awareness Training to Counter AI Threats

Bayer’s security awareness training now focuses on psychological approaches rather than technical methods for detecting social engineering

Threat Actor Uses AI to Build EDR Evasion Tools

A threat actor used AI coding tools to build and test EDR evasion malware, Sophos finds

Infosecurity Europe: UK Firms Prioritize AI Threat Preparedness as Cyber Risks Evolve

UK organizations are prioritizing AI-driven cybersecurity as 43% cite AI-powered attacks as their top risk, prompting significant investment in advanced threat defense

Hackers Used Meta’s AI Support Bot to Seize Instagram Accounts

The Instagram accounts for the Obama White House and the Chief Master Sergeant of the U.S. Space Force were briefly defaced with pro-Iranian images and messages over the weekend, after instructions began circulating on Telegram showing how to trick Meta's "AI…

Infosecurity Europe: AI SOCs Will Still Need SOC Analysts, Security Vendors Say

Top cybersecurity vendors said AI won't replace entry-level – only routine ticket-taking and triage

Attackers Abuse Shared Content for ChatGPT Phishing Campaign

Push Security says threat actors are delivering malware hosted on chatgpt.com/s/ domain

Infosecurity Europe: OWASP Forms New Agentic Research Council

OWASP’s new Agentic Research Council will aim to connect academic work to operational realities on agentic AI security

AI-Generated npm Malware Leaks Its Own GitHub Token

Sloppy AI-generated npm infostealer leaked its own GitHub token, exposing the operator

GCHQ Chief Urges Action as AI Reshapes Cyber Threats

GCHQ director urges urgent business cyber action as AI and quantum reshape the threat

All Major LLMs Exposed to Multi-Turn Manipulation, Warn Researchers

68% of UK Firms Plan to Increase Cyber Spending as AI Risks Rise

UK firms plan higher cyber spending as AI adoption raises security concerns

India's CERT-In Sets 12-Hour Patch Deadline for Exposed Flaws

CERT-In urges 12-hour patching of exposed flaws as AI compresses exploitation timelines

Fake Gemini and Claude Code Sites Spread Infostealers Through SEO Poisoning

The infostealer payload in this campaign collect a vast amount of data, from collaboration authentication keys to cryptocurrency wallets

Three-Quarters of Firms Knowingly Ship Vulnerable Code

AI risks threaten to permeate supply chains through unvetted code and unaudited suppliers

AI Raises the Bar on Vulnerability Awareness and Secure-by-Design Software

AI-powered vulnerability scanning leaves no excuse for unpatched bugs as the EU Cyber Resilience Act pushes firms toward secure-by-design software

Agentic AI Accelerates Software Builds and Mobile App Attacks

Digital.ai data reveals 87% of apps were attacked over the past year

NCSC Publishes Guidance on Securing Agentic AI Use

The UK’s National Cyber Security Centre is helping organizations to understand agentic AI security risks

Bank of England, FCA and Treasury Raise Alarm Over Frontier AI

The UK’s financial authorities have set expectations for the sector on cybersecurity and operational resilience

Most Organizations Now Use AI Agents for Sensitive Security Tasks

Semperis study finds 74% of organizations believe AI will increase attacks on identity infrastructure

ICO Publishes Five-Step Plan to Counter Emerging AI-Powered Attacks

The Information Commissioner’s Office has released new guidance on how to mitigate the risk of AI-powered attacks

Global Cyber Agencies Issue New SBOMs for AI Guidance to Tackle AI Supply Chain Risks

The G7 Cybersecurity Working Group releases new SBOM for AI guidance, outlining seven key data clusters to boost transparency and security across AI supply chains

UK Cybersecurity Market Expands to £14.7bn with Strong Growth in AI Security Firms

UK cybersecurity sector reaches £14.7bn in revenue, driven by rapid growth in AI security firms, increased investment and rising employment across the industry

Patch Tuesday, May 2026 Edition

Artificial intelligence platforms may be just as susceptible to social engineering as human beings, but they are proving remarkably good at finding security vulnerabilities in human-made computer code. That reality is on full display this month with some of…

OpenAI Launches 'Daybreak' to Help Build Secure By Design Software

With Daybreak, OpenAI wants its frontier AI models to be used to deploy secure by design software from the ground up

Malicious Hugging Face Repository Typosquats OpenAI

HiddenLayer reveals infostealer malware in a Hugging Face repository

Fake Claude Code Page Pushes PowerShell Stealer at Devs

Ontinue uncovers fake Claude Code installer pushing PowerShell stealer abusing Chrome's IElevator2

Hackers Observed Using AI to Develop Zero-Day for the First Time

Google Threat Intelligence Group details how cybercriminals attempted to launch a campaign based around an AI-developed Zero-Day targeting open-source software

Legacy Security Tools Failing Data Protection, Capital One Software Report Finds

Traditional network security tools are undermining data protection, with Forrester and Capital One Software research warning AI adoption is impossible without rethinking data security

Cline Kanban Flaw Lets Websites Hijack AI Coding Agents

Oasis Security finds critical Cline kanban WebSocket flaw exposing AI coding agents to hijack

OpenAI and Anthropic LLMs Used in Critical Infrastructure Cyber-Attack, Warns Dragos

Commercial AI models were used to help plan and conduct cyber-attack against operational technology of a water and drainage facility, say researchers

Fake Claude AI Site Drops Beagle Backdoor on Windows Users

Sophos finds fake Claude site spreading DonutLoader and a new Beagle backdoor via DLL sideloading

AI Adoption Outpaces Safety Policies, Leaving Organizations Exposed to Cyber Risk

ISACA report warns that while AI has become the norm, many organizations are yet to formally apply safety or security policies around its use

OpenAI To Extend Cyber Program to Government Agencies

OpenAI announced its intention to expand the Trusted Access for Cyber program for cyber defenders at the federal, state and local government levels

Anthropic Rolls Out Claude Security for AI Vulnerability Scanning

Claude Security enters public beta, giving enterprises AI driven code scanning with no API integration or custom agents required

Nine-Year-Old Zero-Day Flaw in Linux Kernel Discovered by AI-Equipped Security Researcher

A researcher from offensive security firm Theori has found a nine-year-old flaw in the Linux kernel with the help of AI

Cyber is the Number One Global “People Risk,” Says Marsh

Marsh’s 2026 People Risks survey finds cyber‑related challenges dominate, as cyber‑threat literacy tops risks and cyber and AI skills shortages rise

Malicious npm Dependency Linked to AI Assisted Commit Targets Crypto Wallets

Researchers uncover a malicious npm dependency linked to an AI‑assisted code commit that steals sensitive data and exposes crypto wallets

AI Rush is Reviving Old Cybersecurity Mistakes, Mandiant VP Warns

AI tools are not just creating new vulnerabilities, they are reviving old security failures, warned Jurgen Kutscher, VP of Mandiant Consulting

Google Favors General-Purpose Gemini Models Over Cybersecurity‑Specific AI

Google Cloud’s COO advocated for combining general-purpose frontier large language models with task-specific AI agents

Google Introduces Unique AI Agent Identities in New Gemini Enterprise Platform

Google Cloud will attribute a unique cryptographic ID every AI agent that will be tied to “traceable and auditable” authorization policies

Researchers Uncover 10 In-the-Wild Prompt Injection Payloads Targeting AI Agents

Forcepoint has found 10 new indirect prompt injection attacks targeting AI agents

Defending Against China-Nexus Covert Networks of Compromised Devices

<div class="SCXW131754345 BCX8"> <div class="OutlineElement Ltr SCXW131754345 BCX8"> <h2><a class="c-button c-button--on-dark"…

Unchecked AI Agents Cause Cybersecurity Incidents at Two Thirds of Firms

Data exposure, operational disruption and financial losses among issues faced by businesses struggling with the rapid rise of AI agents, warns Cloud Security Alliance report

Commercial AI Models Show Rapid Gains in Vulnerability Research

AI models are making rapid gains in vulnerability research and exploit development, raising new cybersecurity risks, a Forescout study finds

Iranian-Affiliated Cyber Actors Exploit Programmable Logic Controllers Across US Critical Infrastructure

<h2><strong>Advisory at a Glance</strong></h2> <table> <tbody> <tr> <th>Title</th> <td>Iranian-Affiliated Cyber Actors Exploit Programmable Logic Controllers Across US Critical Infrastructure</td> </tr> <tr> <th>Original Publication</th> <td>April 7,…

Pro-Russia Hacktivists Conduct Opportunistic Attacks Against US and Global Critical Infrastructure

<h2><strong>Summary</strong></h2> <p><strong>Note:</strong> This joint Cybersecurity Advisory is being published as an addition to the Cybersecurity and Infrastructure Security Agency (CISA) May 6, 2025, joint fact sheet <a…

CISA Shares Lessons Learned from an Incident Response Engagement

<h2><strong>Advisory at a Glance</strong></h2> <table> <tbody> <tr> <td>Executive Summary</td> <td>CISA began incident response efforts at a U.S. federal civilian executive branch (FCEB) agency following the detection of potential malicious activity…

Countering Chinese State-Sponsored Actors Compromise of Networks Worldwide to Feed Global Espionage System

<h2><strong>Executive summary</strong></h2> <p>People’s Republic of China (PRC) state-sponsored cyber threat actors are targeting networks globally, including, but not limited to, telecommunications, government, transportation, lodging, and military…

Russian GRU Targeting Western Logistics Entities and Technology Companies

<h2><strong>Executive Summary</strong></h2> <p>This joint cybersecurity advisory (CSA) highlights a Russian state-sponsored cyber campaign targeting Western logistics entities and technology companies. This includes those involved in the coordination,…

Student Loan Breach Exposes 2.5M Records

2.5 million people were affected, in a breach that could spell more trouble down the line.

Watering Hole Attacks Push ScanBox Keylogger

Researchers uncover a watering hole attack likely carried out by APT TA423, which attempts to plant the ScanBox JavaScript-based reconnaissance tool.

Tentacles of ‘0ktapus’ Threat Group Victimize 130 Firms

Over 130 companies tangled in sprawling phishing campaign that spoofed a multi-factor authentication system.