As of Thursday, June 18, 2026, the AI cybersecurity threat landscape is showing elevated activity across 143 tracked stories. The dominant themes today are Vulnerabilities & CVEs (38 stories), AI & LLM Threats (35 stories), and Data Breaches (17 stories). AI and LLM-based threats are particularly active with 35 stories covering topics such as prompt injection, model exploitation, deepfake campaigns, and AI-assisted attack tooling. 15 CVEs are being tracked across today's stories, including CVE-2026-50656, CVE-2021-22681, CVE-2024-36401, CVE-2016-5195 and 11 more. Each CVE badge below links directly to the NVD advisory. ⚠️ 26 stories involve critical severity, active exploitation, or zero-day conditions. Security teams should prioritize review of flagged items and verify patch status immediately.
Multiple WordPress plugins from ShapedPlugin were compromised in a supply chain attack that distributed infected releases to paying customers via the vendor's official update system. [...]
A newly discovered data leak dubbed "FortiBleed" has exposed what appears to be a collection of Fortinet and FortiGate VPN credentials for 73,932 firewall URLs at organizations worldwide. [...]
Hackers who once focused on stealing valuable Roblox items are now taking over entire games. Although Roblox operates the service, users can create and publish their own games on it. Successful games can generate substantial revenue through in-game purchases.…
eSentire has announced the launch of Atlas Preempt, a component of the company’s Atlas Platform. Atlas Preempt performs continuous, AI-driven offensive testing against customer environments to identify which exposures attackers can reach and feeds that data…
Four decades of incident response experience suggest that exploits are often the symptom, not the root cause, of today’s cybersecurity failures. The post No Exploits Required appeared first on SecurityWeek .
Analysis of chatter on underground forums by Sophos finds that hackers fear AI could take work away from them
A Russian-speaking cybercriminal group has stolen credentials contained in the configuration files of nearly 74,000 Fortinet firewalls and VPN gateways around the world. The data was accidentally exposed by the group on a server, along with other artifacts…
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…
The Israeli startup provides sovereign AI and cyber defenses for governments and critical infrastructure. The post Dream Raises $260 Million at $3 Billion Valuation appeared first on SecurityWeek .
CloudSEK maps Operation Escaneo, a campaign hitting Latin American infrastructure via perimeter bugs
Splunk patched an OS command injection in AI Toolkit, while Atlassian fixed dozens of flaws in third-party dependencies. The post Atlassian, Splunk Patch Critical Vulnerabilities appeared first on SecurityWeek .
The Android malware allows its operators to take control of infected devices and harvest sensitive information. The post Rokarolla Banking Trojan Targets 200 Applications appeared first on SecurityWeek .
Insufficient validation of user input allows an attacker to gain access to the underlying OS and elevate their privileges to root. The post Critical Command Execution Vulnerability Patched in Cisco ISE appeared first on SecurityWeek .
Microsoft confirmed the RoguePlanet Defender zero-day (CVE-2026-50656), a privilege escalation flaw, and is developing a security patch. Microsoft has acknowledged the RoguePlanet zero-day affecting Microsoft Defender, tracked as CVE-2026-50656 (CVSS score of…
Richard Horne, the NCSC CEO, said three-quarters of cyber-attacks targeting UK critical infrastructure came from nation-state actors
Most ransomware operations leave the work of disabling endpoint security software to their affiliates. The ransomware-as-a-service gang Gentlemen runs a different model. Its operators develop and maintain a set of tools for shutting down endpoint detection…
Barracuda Networks has unveiled Barracuda Integrated Email Protection, an Integrated Cloud Email Security (ICES) solution delivering protection against evolving AI-driven threats. Powered by AI, the solution continuously and autonomously detects and…
42Crunch has announced the availability of the 42Crunch API Security Testing Plugin for GitHub Copilot. This latest advance enables developers to continuously audit, test, remediate and validate API security vulnerabilities directly within AI-assisted…
Blue Planet is closing the governance gap in network operations by unveiling Blue Planet Configuration and Change Management (CCM), unifying device configuration, change, and lifecycle management across multi-vendor networks. Backed by Blue Planet’s deep…
FortiBleed: Admin Passwords for 75,000 Fortinet Firewalls Are Out in the Wild. Half the Internet-Facing Fortinets on the Planet. Security researcher Bob Diachenko found a server sitting open on the internet containing what appeared to be valid Fortinet VPN…
AI agents depend on tools, skills, and other agents spread across many teams, organizations, and platforms. These capabilities live in separate systems with their own registries, and an agent working in one environment has limited means to locate and connect…
As we noted in our earlier analysis, attackers already know secrets are on your developers’ machines, the only question is whether security teams do. The supply chain attack calendar of 2026 has been relentless. Megalodon backdoored 5,500 GitHub repositories…
[This is a Guest Diary by Adam Nason, an ISC intern as part of the SANS.edu BACS program] 
OpenAI appears to be testing a new subscription and experience for science use cases, but it's unclear if it'll be available to everyone regardless of their background. [...]
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…
NCSC CEO Richard Horne warned that “kinetic targeting in any conflict tomorrow will be based on intelligence gathered today” and that nation-state adversaries were “prepositioning” throughout British critical infrastructure.
Microsoft has formally disclosed that it's working to release a patch to address a Defender zero-day codenamed RoguePlanet. The vulnerability has now been assigned the CVE identifier CVE-2026-50656 (CVSS score: 7.8), with the tech giant describing it as a…
As Kyiv takes steps toward formal accession to the EU, the bloc is integrating Ukraine with its pool of pre-approved cybersecurity incident response companies.
A French-speaking attacker broke into a small French automotive business, planted a keylogger, and stole banking and email credentials. Ordinary stuff, until one move near the end. Before his command-and-control server went dark, he installed OpenSSH and…
DragonForce hid for months by routing malware traffic through Microsoft Teams infrastructure, masking C2 activity and evading network detection. DragonForce ransomware operators hit a major U.S. services firm and stayed hidden for one to two months by routing…
Nisos infiltrated a North Korean IT-worker fraud cell running on AI interviews and a US laptop farm
Account takeovers are rising as attackers bypass traditional defenses through phishing, session hijacking, and MFA fatigue. Specops Software explores how device trust and continuous verification help reduce account takeover risk. [...]
GitBait phishing kit abuses GitHub Pages and the SheetBest API to steal Mexican banking credentials
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…
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
Apono specializes in just-in-time access governance technology for humans, machines, and AI agents. The post 1Password Acquires Apono in Reported $250M-$300M Deal appeared first on SecurityWeek .
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
Breaches don't always start with a zero-day. An exposed admin panel can get brute-forced, or credentials reused from a previous attack. But when a vulnerability does drop — like MongoBleed earlier this year, which let attackers pull credentials and session…
FulcrumSec leaked data stolen from Novo Nordisk, claiming to have exfiltrated 1.3TB, including clinical records and AI research assets. On June 15, 2026, a data-theft extortion group calling itself FulcrumSec began leaking files from Novo Nordisk, the Danish…
SANS Institute study finds few SOCs have built AI into defined workflows, despite widespread adoption
As many as 144 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…
GitHub rejected two formal vulnerability reports identifying design flaws that researchers say are enabling variants of the Shai-Hulud supply-chain worm to infect and compromise hundreds of software packages and developer accounts worldwide.
At least 15 malicious plugins found on the JetBrains Marketplace were designed to steal AI API keys from developers. [...]
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…
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.
Athena is a new an industry coalition to fix the vulnerabilities frontier AI models find before attackers can exploit them
A default low-privilege account on a LiteLLM proxy can climb to full admin and run code on the server by chaining three vulnerabilities, researchers at Obsidian Security disclosed LiteLLM is a widely deployed open-source AI gateway that brokers calls to more…
A single click on a trusted Microsoft link could have let an attacker pull emails, calendar details, and indexed files out of Microsoft 365 Copilot Enterprise Search. Researchers at Varonis Threat Labs chained three bugs into a one-click exfiltration path…
Stuff broke again. Not in a movie way. An old tool was left exposed. An abandoned package was abused. A deprecated feature was still running in prod. This week is the same lesson in a new form: phishing kits are easier to rent, AI names are useful bait, old…
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
Government departments find hundreds of vulnerabilities after testing frontier models
Plus: AI bug hunting fuels Microsoft’s biggest-ever Patch Tuesday, ShinyHunters ransomware gang exploits an Oracle zero-day, and more.
Anthropic said on Friday it will "abruptly disable" its most advanced artificial intelligence (AI) models, Claude Fable 5 and Mythos 5, for all users after the U.S. government ordered it to suspend access to the models for foreign nationals, whether inside or…
Google on Friday said it's pursuing legal action against a Chinese cybercrime network, accusing it of using its Gemini artificial intelligence (AI) agent to send phishing text messages targeting Americans. The network is said to be behind the development and…
Cybersecurity researchers have described what they say is a new class of attack that can trick artificial intelligence (AI) coding agents into running arbitrary code on developer machines. Called Agentjacking by Tenet Security, the attack can be triggered by…
For most of the past decade, managed detection and response was the answer to a real problem. Security teams couldn't staff around the clock, couldn't hire enough analysts, and needed someone else to handle the alert queue. MDR stepped in. It worked well…
Cybersecurity researchers have disclosed details of three now-patched security flaws impacting LangGraph, including a critical vulnerability chain that could result in remote code execution. LangGraph is an open-source framework created by LangChain to build…
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.
Two security teams have shown, in separate research published this week, that OpenClaw, the popular self-hosted AI agent, can be driven to run attacker-controlled code or hand over sensitive data through ordinary-looking inputs. Imperva buried instructions…
Fake AI guides hide a multi-stage chain that drops AsyncRAT, with signs of AI-assisted coding
It's been one of those weeks. You expect the usual noise: recycled malware, sloppy attacks, another easy target getting hit. Instead, there's a supply chain attack kit in a public repo, a $5,000-a-month RAT that clones browsers, and research showing AI agents…
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
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.
For thirty years, vulnerability management ran on a buffer: the months between when a vulnerability was found and when someone could figure out how to weaponize it. The solution was straightforward enough; triage by severity, schedule the fix, validate, and…
Tenet Security researchers reveal how new “agentjacking” attacks could trick coding agents into executing arbitrary code
“Defenders cannot afford to take weeks to patch,” one Cybersecurity and Infrastructure Security Agency official warned on Wednesday.
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…
Anthropic unveils Claude Mythos 5 and Fable 5, a restricted-access frontier AI model and guardrailed version for everyone to use
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…
Anthropic is releasing Claude Mythos 5 to trusted organizations and Claude Fable 5 to the public, a version it says can’t be used for cyberattacks.
Most dev teams use AI coding assistants but only 30% have full governance in place
OpenAI brings Lockdown Mode and Active Sessions to ChatGPT to curb prompt injection data theft
At Infosecurity Europe 2026, OWASP’s Ariel Fogel warned that prompt injection remains an “unresolved problem” within generative AI architecture
Meta confirms an AI tool vulnerability led to unauthorized access to Instagram accounts after a failure in email verification during password reset
Plus: Hackers use Meta’s AI bots to hack Instagram accounts, Anthropic helps NSA hackers, a decades-long GPS satellite mystery may have been solved, and more.
Lloyds Banking Group shared its approach for securing agentic AI workflows, with a mix of hands on experimentation and cross functional governance
The OWASP agentic AI security framework helps organizations assess governance maturity vs adoption and adjust governance as needed
Ox Security field CTO, Boaz Barzel, makes the case for vibe security to tackle AI agent coding risks
Microsoft Detection and Response Team (DART) details how it has uncovered malicious AI applications as cyber criminals manipulate organizations adopting AI tools
A Bugcrowd researcher has unveiled ExploitBench, an independent benchmark of AI models for vulnerability exploitation
Proton uses machine learning models to detect abuse of its services – especially email addresses used by cybercriminals
Inaugural Infosecurity Europe Cyber Startup Award Winner Impresses Panel with Ability Help Prioritize Vulnerabilities in AI era
Trump's executive order invites voluntary pre-release review of frontier AI models
Anthropic widens Project Glasswing access to 150 more firms as patching becomes the bottleneck
The emergence of AI models capable to autonomously find and fix vulnerabilities at scale is having a significant impact on patching management, experts say
Halcyon’s Cynthia Kaiser lifts the lid on the dark web market for AI cybercrime tools
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
Bayer’s security awareness training now focuses on psychological approaches rather than technical methods for detecting social engineering
A threat actor used AI coding tools to build and test EDR evasion malware, Sophos finds
UK organizations are prioritizing AI-driven cybersecurity as 43% cite AI-powered attacks as their top risk, prompting significant investment in advanced threat defense
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…
Top cybersecurity vendors said AI won't replace entry-level – only routine ticket-taking and triage
Push Security says threat actors are delivering malware hosted on chatgpt.com/s/ domain
OWASP’s new Agentic Research Council will aim to connect academic work to operational realities on agentic AI security
Sloppy AI-generated npm infostealer leaked its own GitHub token, exposing the operator
GCHQ director urges urgent business cyber action as AI and quantum reshape the threat
UK firms plan higher cyber spending as AI adoption raises security concerns
CERT-In urges 12-hour patching of exposed flaws as AI compresses exploitation timelines
Authorities in the Netherlands have arrested the co-owners of two related Internet hosting companies for operating IT infrastructure used by Russia to carry out cyberattacks, influence operations and disinformation campaigns inside the European Union. The two…
The infostealer payload in this campaign collect a vast amount of data, from collaboration authentication keys to cryptocurrency wallets
AI risks threaten to permeate supply chains through unvetted code and unaudited suppliers
AI-powered vulnerability scanning leaves no excuse for unpatched bugs as the EU Cyber Resilience Act pushes firms toward secure-by-design software
Digital.ai data reveals 87% of apps were attacked over the past year
The UK’s National Cyber Security Centre is helping organizations to understand agentic AI security risks
The UK’s financial authorities have set expectations for the sector on cybersecurity and operational resilience
Semperis study finds 74% of organizations believe AI will increase attacks on identity infrastructure
The Information Commissioner’s Office has released new guidance on how to mitigate the risk of AI-powered attacks
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 sector reaches £14.7bn in revenue, driven by rapid growth in AI security firms, increased investment and rising employment across the industry
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…
With Daybreak, OpenAI wants its frontier AI models to be used to deploy secure by design software from the ground up
HiddenLayer reveals infostealer malware in a Hugging Face repository
Ontinue uncovers fake Claude Code installer pushing PowerShell stealer abusing Chrome's IElevator2
Google Threat Intelligence Group details how cybercriminals attempted to launch a campaign based around an AI-developed Zero-Day targeting open-source software
Traditional network security tools are undermining data protection, with Forrester and Capital One Software research warning AI adoption is impossible without rethinking data security
Oasis Security finds critical Cline kanban WebSocket flaw exposing AI coding agents to hijack
Commercial AI models were used to help plan and conduct cyber-attack against operational technology of a water and drainage facility, say researchers
Sophos finds fake Claude site spreading DonutLoader and a new Beagle backdoor via DLL sideloading
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 announced its intention to expand the Trusted Access for Cyber program for cyber defenders at the federal, state and local government levels
Claude Security enters public beta, giving enterprises AI driven code scanning with no API integration or custom agents required
A researcher from offensive security firm Theori has found a nine-year-old flaw in the Linux kernel with the help of AI
Marsh’s 2026 People Risks survey finds cyber‑related challenges dominate, as cyber‑threat literacy tops risks and cyber and AI skills shortages rise
Researchers uncover a malicious npm dependency linked to an AI‑assisted code commit that steals sensitive data and exposes crypto wallets
AI tools are not just creating new vulnerabilities, they are reviving old security failures, warned Jurgen Kutscher, VP of Mandiant Consulting
Google Cloud’s COO advocated for combining general-purpose frontier large language models with task-specific AI agents
Google Cloud will attribute a unique cryptographic ID every AI agent that will be tied to “traceable and auditable” authorization policies
Forcepoint has found 10 new indirect prompt injection attacks targeting AI agents
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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
AI models are making rapid gains in vulnerability research and exploit development, raising new cybersecurity risks, a Forescout study finds
OpenAI’s new frontier model focused on cybersecurity comes following Anthropic’s launch of Claude Mythos Preview and Project Glasswing
At VulnCon, Lindsey Cerkovnik, head of vulnerability management at CISA, said AI companies should play a bigger role in vulnerability disclosures in the future
The AISI has issued its judgement on Anthropic’s Mythos Preview model
<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,…
<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…
<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…
<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…
<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,…
2.5 million people were affected, in a breach that could spell more trouble down the line.
Researchers uncover a watering hole attack likely carried out by APT TA423, which attempts to plant the ScanBox JavaScript-based reconnaissance tool.
Over 130 companies tangled in sprawling phishing campaign that spoofed a multi-factor authentication system.