As of Thursday, June 4, 2026, the AI cybersecurity threat landscape is showing elevated activity across 131 tracked stories. The dominant themes today are AI & LLM Threats (43 stories), Vulnerabilities & CVEs (43 stories), and Phishing (17 stories). AI and LLM-based threats are particularly active with 43 stories covering topics such as prompt injection, model exploitation, deepfake campaigns, and AI-assisted attack tooling. 16 CVEs are being tracked across today's stories, including CVE-2026-23479, CVE-2026-39987, CVE-2021-22681, CVE-2024-36401 and 12 more. Each CVE badge below links directly to the NVD advisory. ⚠️ 21 stories involve critical severity, active exploitation, or zero-day conditions. Security teams should prioritize review of flagged items and verify patch status immediately.
The binding operational directive will focus in part on “vulnerability alleviation and vulnerability management,” Andersen said in remarks delivered at the TechNet Cyber conference in Baltimore.
Proton uses machine learning models to detect abuse of its services – especially email addresses used by cybercriminals
A new China-linked cybercrime group known as TA4922 has expanded its targeting focus to target European organizations in the U.K., Germany, Italy, and South Africa. These efforts have been complemented by a "rapid operational tempo" and a continually evolving…
A flaw in the Full Page Cache Warmer extension can be exploited without authentication via serialized PHP object payloads. The post Mirasvit Vulnerability Exploited to Execute Code on Magento Servers appeared first on SecurityWeek .
Relying on social engineering, the hacking group engages in credential phishing, malware distribution, and fraud activities. The post Chinese Cybercrime Group in Spotlight for Record Campaign Pace appeared first on SecurityWeek .
Cybersecurity researchers have shed light on a macOS malvertising campaign codenamed Operation FlutterBridge that spreads a new backdoor called FlutterShell. According to Palo Alto Networks Unit 42, the campaign is said to be the next stage of a previously…
Cisco has released security updates to patch a critical-severity Unified Communications Manager (Unified CM) flaw that allows attackers to gain root privileges. [...]
Gamaredon exploits a WinRAR flaw to drop modular, nearly fileless malware on Ukrainian targets, hiding payloads in Windows streams and resolving C2s via Telegram. Sekoia’s Threat Detection & Research team dropped a YARA rule in late December 2025 to hunt for…
Law enforcement and tech companies disrupted infrastructure linked to scammers operating across Southeast Asia. The post Over 1.4 Million Accounts Disrupted in Cybercrime Crackdown appeared first on SecurityWeek .
Cybersecurity researchers have flagged a large-scale operation that impersonates open-source and freeware projects to funnel unsuspecting users through a Traffic Distribution System (TDS) and deliver malware families like Remus Stealer, AnimateClipper, and…
Cybersecurity and business leaders with experience of dealing with major incidents from within the NCSC and at JLR detail what you need to prioritize if your organization is hit by a cyber-attack
A researcher publicly released a VS Code exploit within hours, citing past disputes with Microsoft over bug handling. The security researcher Ammar Askar found a new serious zero-day in Visual Studio Code, told a contact at GitHub about it, and published a…
International Operation KRATOS led by Europol dismantled illegal streaming networks, leading to 29 arrests and nine crime groups taken down. An international law enforcement operation, codenamed Operation KRATOS and involving 13 countries (Belgium, Bulgaria,…
In this interview with Help Net Security, Marc Rubbinaccio, Head of Cybersecurity and Compliance at Secureframe, explains where security teams go wrong when preparing for CMMC and FedRAMP 20x. The conversation covers how organizations check the 110…
A vulnerability scanner flags a critical CVSS 10 vulnerability on an industrial asset. The report lands in the boss’ inbox and now he wants to know why we’re sitting on a critical vulnerability. In a normal IT environment, you patch it then close the ticket…
In a recent GitGuardian analysis, an average of 150 secrets were found on a sample of developer endpoints. Private keys accounted for 38% of unique secrets, while cloud, identity provider, and secret management credentials (AWS IAM, Hashicorp vault) added…
ETSI has published TS 104 033, a technical specification that defines security requirements for AI computing platforms. The specification establishes a security framework for platforms used to host AI applications in data center and edge computing…
A Chinese-speaking cybercrime group has expanded its targeting to the European space, deploying previously undocumented malware and the Atlas backdoor. [...]
The U.S. Treasury's Office of Foreign Assets Control (OFAC) has announced sanctions against Nobitex, Iran's largest cryptocurrency exchange, for facilitating payments related to terrorist activities. [...]
A single poisoned notification from WhatsApp, Slack, SMS, Signal, Instagram, or Messenger could have hijacked Google Gemini's voice assistant on Android and made it open a victim's connected windows, fake a message from their boss, push the phone into a Zoom…
Four people suing Elon Musk's AI firm under pseudonyms due to the risks of being identified may face a difficult choice: Reveal your real names, or drop the lawsuit.
Coralogix offers a full-stack observability platform that unifies logs, metrics, traces, security, and AI observability. The post Coralogix Raises $200M at $1.6B Valuation to Scale AI Observability Platform appeared first on SecurityWeek .
Redis has patched a use-after-free in its blocking-client code that lets an authenticated user run arbitrary OS commands on the machine hosting the database. The flaw was found by an autonomous AI tool built to hunt bugs in large codebases. Tracked as…
Assume the breach. Zero-days keep shipping, AI is writing exploits faster than anyone patches, and "patch everything in time" stopped working years ago. Stop betting the org on winning that race. You don't control which bug lands. You control what it can…
Microsoft has introduced a series of security tools and capabilities focused on AI-driven vulnerability discovery, AI agents, and AI models. The updates include a multi-agent vulnerability discovery system, new controls for managing and securing AI agents,…
Inaugural Infosecurity Europe Cyber Startup Award Winner Impresses Panel with Ability Help Prioritize Vulnerabilities in AI era
The AI Risk Quadrant evaluates AI agents based on three factors: how vulnerable they are to compromise, the potential impact of a breach, and the strength of their security defenses. The post Security of 100 AI Agents Tested and Ranked – What You Need to Know…
New operating systems prioritize usability, a reality which threat actors use to exploit security gaps. Every misconfiguration creates an opportunity for compromise, and lean teams struggle in their security management efforts to harden hundreds or thousands…
Researchers at the University of Toronto, the Vector Institute, and the University of Cambridge have built and tested a proof-of-concept AI-driven worm that does not operate on a fixed list of exploits. Instead, it analyzes each target it encounters, reasons…
Trump's executive order invites voluntary pre-release review of frontier AI models
The military branch would take 12 to 18 months to get up and running and also include roughly 5,000 members of the National Guard and up to 6,000 civilians, according to the commission.
Anthropic widens Project Glasswing access to 150 more firms as patching becomes the bottleneck
Google is introducing a new Android security feature that will detect and flag phone calls in which scammers use artificial intelligence to impersonate a user's personal contacts. [...]
The emergence of AI models capable to autonomously find and fix vulnerabilities at scale is having a significant impact on patching management, experts say
Cybersecurity researchers have discovered a remote denial-of-service exploit that affects major web servers, including NGINX, Apache HTTPD, Microsoft IIS, Envoy, and Cloudflare Pingora. The vulnerability has been codenamed HTTP/2 Bomb by Calif. "The…
Private firms are being targeted by nation-state groups for reasons beyond finance, argued ISACA’s Bharat Thakrar
Halcyon’s Cynthia Kaiser lifts the lid on the dark web market for AI cybercrime tools
OpenAI says it's rolling out a new update that improves the existing GPT-5.5 Instant model, and this move comes ahead of the scheduled retirement of multiple legacy models, including o3. [...]
The order notes that federal access to the models should be subject to “appropriate confidentiality, cybersecurity, insider-risk, and intellectual-property protection, use, and nondisclosure requirements.”
Attackers exploited Meta’s AI support chatbot to reset Instagram passwords and hijack accounts without accessing victims’ email inboxes. Attackers abused Meta’s AI-powered support chatbot to reset Instagram passwords and hijack accounts without accessing…
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
AI-driven exploitation timelines are rapidly shrinking, and they are not going to stop shrinking. Vulnerabilities are being discovered, reproduced, and weaponized faster than ever in the history of enterprise security. As a result, the window between a…
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
Attackers backdoored 32 packages in Red Hat's official npm scope to steal cloud and CI secrets
For a few days, my SANS ISC mailbox is flooded with emails that delivers SVG files. An SVG ("Scalable Vector Graphic") is a web-friendly vector file format used for graphics and icons. No URL in the body, just “an image”,…
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…
Monday hit like a cron job with anger issues. A busted auth path here, a repo-side faceplant there, some "patched-ish" thing already getting chewed on in the wild, and then the usual bonus round: poisoned dev tools, sketchy forum chatter, phishing kits…
Top cybersecurity vendors said AI won't replace entry-level – only routine ticket-taking and triage
Cybersecurity researchers have disclosed details of a new malicious supply chain campaign that's targeting developers using OpenAI Codex through a legitimate-looking remote web UI. The tool, named codexui-android, is advertised on GitHub and npm as a remote…
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
Plus: A ransomware group is now stealing data in person, BusPatrol wants to hand its license plate surveillance data to the cops, and more.
Cybersecurity researchers have disclosed details of a vulnerability in OpenAI ChatGPT that leverages the artificial intelligence (AI) assistant's implicit trust in Markdown links and images to trigger prompt injections and open the door to phishing attacks.…
An unknown threat actor has been observed using a large language model (LLM) agent to conduct post-compromise actions after obtaining initial access following the exploitation of a publicly-accessible Marimo network using a recently disclosed vulnerability.…
A previously undocumented threat actor dubbed GREYVIBE has been attributed to ongoing and persistent attacks targeting Ukraine and Ukraine-related entities since at least August 2025. GREYVIBE, per WithSecure, is assessed to be a Russian-speaking group…
Shadow AI used to mean employees pasting things they shouldn't into ChatGPT. It now means something bigger: employees building full applications with AI, wiring them into production systems, and publishing them on the open internet. Without Security or IT in…
Sloppy AI-generated npm infostealer leaked its own GitHub token, exposing the operator
Every time you think the industry has finally stopped doing some reckless, low-effort crap, somebody spins up a fresh box full of sketchy loaders, fake installers, recycled social-engineering bait, and enough exposed infrastructure to make you wonder if prod…
State of AI Usage Report 2026 (full report here) by LayerX Security reveals the extent of the enterprise AI visibility gap and why most organizations still don't understand where their AI exposure is actually coming from. The research shows that enterprise AI…
Customer data from more than 350 hotels around the world may have been accessed as part of realistic reservation-hijacking scams.
GCHQ director urges urgent business cyber action as AI and quantum reshape the threat
Cybersecurity researchers have discovered a new malicious package on the npm registry that comes with information stealing capabilities. According to OX Security, the package, named "mouse5212-super-formatter," is designed to upload files from…
When an employee installs an AI writing assistant, connects a coding copilot to their IDE, or starts summarizing meetings with a new browser tool, they are doing exactly what a productive employee should do: finding faster ways to work. Across most…
UK firms plan higher cyber spending as AI adoption raises security concerns
Microsoft has warned of an active cryptojacking campaign that makes use of artificial intelligence (AI) chatbot interactions as a mechanism for surfacing malicious download sites. "This emerging delivery technique extends social engineering beyond…
CERT-In urges 12-hour patching of exposed flaws as AI compresses exploitation timelines
As Americans stew over the looming risk of job-stealing AI and data centers in their back yards, the feds are raising the alarm about a new category of threat, documents obtained by WIRED show.
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…
As attackers ramp up their AI exploit development, the search for software vulnerabilities is changing rapidly.
Plus: Google publishes a live exploit for an unpatched flaw, the feds arrest two men accused of creating thousands of nonconsensual deepfake nudes, and more.
Lawmakers in both houses of Congress are demanding answers from the U.S. Cybersecurity & Infrastructure Security Agency (CISA) after KrebsOnSecurity reported this week that a CISA contractor intentionally published AWS GovCloud keys and a vast trove of other…
The infostealer payload in this campaign collect a vast amount of data, from collaboration authentication keys to cryptocurrency wallets
Canadian authorities on Wednesday arrested a 23-year-old Ottawa man on suspicion of building and operating Kimwolf, a fast spreading Internet-of-Things botnet that enslaved millions of devices for use in a series of massive distributed denial-of-service…
AI risks threaten to permeate supply chains through unvetted code and unaudited suppliers
GitHub is just the latest victim of TeamPCP, a gang that has carried out a spree of software supply chain attacks that has impacted hundreds of organizations.
A new study finds AI companies, defense firms, and dating apps are among 38 data collectors allegedly using manipulative design to confuse users while collecting their data.
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
SANS Institute reveals that AI agents are behind a 76% surge in non-human identities
Google API key flaw exposes mobile apps to Gemini AI access, private files and billing risks
Anthropic launches Project Glasswing, using its Claude Mythos Preview AI to autonomously identify and fix undiscovered vulnerabilities in critical software
Anthropic’s Claude AI has helped researchers find a vulnerability in Apache ActiveMQ Classic
GrafanaGhost chains AI prompt injection and URL flaws to exfiltrate sensitive Grafana data
Cryptocurrency scams alone cost victims over $7 billion, while AI-enabled fraud threats are on the rise, says FBI
<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,…
OpenAI has patched vulnerability, which Check Point said was because of a DNS loophole
Researchers at ReliaQuest warn of persistent malware campaign targeting enterprise credentials
Security researchers from Georgia Tech have observed a surge in reported CVEs for which the flaw was introduced by AI-generated code
PwC Annual Threat Dynamics report says AI-threats are the biggest concern of clients
OpenAI’s Safety Bug Bounty program seeks to address AI safety vulnerabilities beyond traditional security flaws
<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.