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98 reports

All LLM Security Agentic AI Industry News Research Supply Chain Prompt Injection First Look: Security Regulatory Jailbreaks Adversarial ML Data Poisoning Model Theft AI Security Tools Security Operations

Account Takeover Protection: OpenAI Hardens ChatGPT Auth

ATLAS OWASP MEDIUM ▲ 6.2 Wired Security May 01, 2026

OpenAI has introduced Advanced Account Security, an optional hardened authentication mode for ChatGPT and Codex users who face elevated risk of account takeover, including journalists, dissidents, and researchers. The feature enforces passkey or physical security key authentication, eliminates SMS/email recovery routes, and removes OpenAI support team access to recovery options to block social engineering attacks. Members of OpenAI's Trusted Access for Cyber programme will be mandated to enable it or provide equivalent enterprise SSO attestation by June 1.

GPT-5.5 Matches Claude Mythos in Vulnerability Discovery

ATLAS OWASP HIGH ▲ 7.2 Simon Willison May 01, 2026

The UK's AI Security Institute has evaluated OpenAI's GPT-5.5 for offensive cybersecurity capabilities, finding it comparable to Anthropic's Claude Mythos model in identifying security vulnerabilities. Unlike Mythos, GPT-5.5 is generally available, meaning its vulnerability-discovery capabilities are accessible to a broad population including malicious actors. This raises significant concerns about the proliferation of AI-assisted exploitation tools at scale.

Famous Chollima Poisons npm With LLM-Assisted Malware

ATLAS OWASP HIGH ▲ 8.5 The Hacker News Apr 30, 2026

North Korean threat group Famous Chollima (Shifty Corsair) has weaponised AI-assisted code generation to embed malicious npm packages into autonomous AI agent projects, targeting cryptocurrency wallets. The campaign, dubbed PromptMink, exploited Anthropic's Claude Opus to co-author a malicious dependency commit, demonstrating a novel abuse of LLM coding agents for supply chain infiltration. The attack uses a multi-layer dependency structure to evade detection, with second-layer malicious packages swiftly rotated when identified.

Sevii Cyber Swarm Defense Token Costs Enable DoS Attacks

ATLAS OWASP MEDIUM ▲ 6.5 SecurityWeek Apr 29, 2026

Sevii's Cyber Swarm Defense launch highlights a structural tension in enterprise AI security: the token-based cost model of agentic AI defense becomes unpredictable and potentially unsustainable as adversarial attack volume increases. CISOs face a compounding risk where budget exhaustion mid-attack could force a fallback to understaffed human teams. The article also references Claude Mythos as a frontier model enabling higher-volume adversarial campaigns, underscoring the asymmetric cost burden between attackers and defenders.

Frontier LLMs Enable Industrialised Cyberattacks at Scale

ATLAS OWASP HIGH ▲ 6.5 Dark Reading Apr 28, 2026

The article examines the emerging threat landscape posed by agentic AI systems in offensive security contexts, suggesting that frontier LLMs could enable industrialised exploitation at scale. Commentator Ari Herbert-Voss reframes the narrative, arguing this moment also presents a strategic opportunity for defenders. The piece surfaces tensions around autonomous AI-driven cyberattacks and their potential to outpace traditional security postures.

Model Extraction Attacks Surge: Google GTIG Q4 Report

ATLAS OWASP HIGH ▲ 8.5 Mandiant Blog Apr 26, 2026

Google Threat Intelligence Group's Q4 2025 AI Threat Tracker documents a meaningful escalation in adversarial AI misuse, including a surge in model extraction (distillation) attacks, nation-state operationalisation of LLMs for phishing and reconnaissance, and the emergence of AI-integrated malware families such as HONESTCUE that leverage Gemini's API. While no breakthrough capabilities have been observed from APT actors, the integration of agentic AI for tooling development signals a maturing threat landscape. Defenders should prioritise monitoring for model extraction activity, API abuse, and AI-augmented social engineering campaigns.

Zealot: Autonomous LLM Cloud Penetration Testing System

ATLAS OWASP CRITICAL ▲ 9.0 Palo Alto Unit 42 Apr 24, 2026

Unit 42 researchers built 'Zealot,' a multi-agent LLM-powered penetration testing system capable of autonomously executing end-to-end offensive operations against cloud infrastructure, demonstrating that AI acts as a significant force multiplier for cloud attacks. The system successfully attacked a misconfigured GCP sandbox environment using a supervisor-coordinated architecture of specialist agents, validating that agentic AI can operate at machine speed against real cloud misconfigurations. This research follows Anthropic's November 2025 disclosure of a state-sponsored AI-orchestrated espionage campaign and marks a critical inflection point in understanding autonomous AI offensive capabilities.

Qihoo 360 AI System Discovers 1,000 Vulnerabilities

ATLAS OWASP HIGH ▲ 8.2 SecurityWeek Apr 24, 2026

Chinese cybersecurity firm 360 Digital Security Group claims its multi-agent AI system autonomously discovered nearly 1,000 vulnerabilities, including a critical Office zero-day allegedly dormant for eight years, drawing direct comparisons to Anthropic's restricted Claude Mythos model. The developments signal that AI-driven autonomous vulnerability discovery is rapidly proliferating beyond tightly controlled Western research environments. This raises significant concerns about AI-accelerated offensive capabilities reaching nation-state threat actors at scale.

Anthropic Mythos AI Achieves 72% Autonomous Exploit Success

ATLAS OWASP CRITICAL ▲ 9.2 The Hacker News Apr 24, 2026

Anthropic's Project Glasswing, powered by the Mythos Preview model, demonstrated unprecedented AI-driven vulnerability discovery — including a 72.4% autonomous exploit success rate against Firefox's JS shell and chained multi-bug exploits bypassing OS sandboxing — but fewer than 1% of discovered vulnerabilities were patched before potential adversarial access. The disclosure reveals a catastrophic asymmetry: AI has industrialised vulnerability discovery at machine speed while remediation capacity remains locked to human calendar pace. Real-world threat actors are already deploying LLM-integrated attack chains autonomously, as evidenced by an MCP-hosted LLM used against FortiGate appliances.

Microsoft: AI Models Chain Exploits Autonomously

ATLAS OWASP HIGH ▲ 7.2 Microsoft Security Blog Apr 23, 2026

Microsoft's Security Blog outlines how AI is accelerating the offensive threat landscape, with models now capable of autonomously discovering vulnerabilities and chaining lower-severity issues into functional exploits with working proof-of-concept code. The post frames this as an inflection point requiring AI-native defensive responses. While promotional in tone, it reflects an industry-wide acknowledgment that AI-enabled attack automation is outpacing traditional detection capabilities.

Autonomous Exploit Generation: Claude Mythos Risk

ATLAS OWASP HIGH ▲ 8.5 Schneier on Security Apr 20, 2026

Bruce Schneier analyses Anthropic's Claude Mythos Preview and Project Glasswing, a controlled deployment programme aimed at finding and patching software vulnerabilities before the model is publicly released due to its advanced cyberattack capabilities. The piece highlights a growing offensive AI capability gap, noting that newer LLMs can autonomously chain memory corruption bugs and operationalise exploits without human orchestration, while observing that defenders currently retain a marginal advantage because vulnerability discovery is easier than exploitation. Schneier warns that this advantage is narrowing rapidly and that the industry must prepare for a world of commoditised zero-day exploits.

AI-Powered Adversarial Attacks Spark Artemis Defense

ATLAS OWASP MEDIUM ▲ 6.2 SecurityWeek Apr 20, 2026

Artemis, a cybersecurity startup focused on AI-powered threat defence, has emerged from stealth with $70 million in funding, positioning itself to counter AI-driven attacks across applications, users, endpoints, and cloud workloads. The emergence signals growing investor confidence in purpose-built AI security platforms designed to address the escalating threat landscape of adversarial AI. While details on specific technical capabilities remain sparse, the company's broad scope suggests coverage of multiple attack surfaces increasingly targeted by AI-enabled threat actors.

Axios npm Library Compromised in Supply Chain Attack

ATLAS OWASP HIGH ▲ 7.2 The Hacker News Apr 20, 2026

A North Korean threat group (UNC1069) compromised the popular npm Axios library via a supply chain attack, injecting a backdoor (WAVESHAPER.V2) into two poisoned versions that were inadvertently downloaded by OpenAI's macOS app-signing GitHub Actions workflow. Although OpenAI found no evidence of certificate exfiltration or user data compromise, the incident exposed the signing credentials for ChatGPT Desktop, Codex, Codex CLI, and Atlas, prompting certificate revocation and mandatory app updates by May 8, 2026. The attack highlights the acute risk of software supply chain compromises against AI product delivery pipelines.

Legacy Vulnerabilities Amplified by AI at Enterprise Scale

ATLAS OWASP HIGH ▲ 6.5 Dark Reading Apr 18, 2026

The article argues that AI's primary security risk lies not in introducing entirely new vulnerability classes, but in dramatically amplifying the impact and exploitability of well-established ones. This framing has significant implications for defenders, suggesting that legacy vulnerability management practices must be re-evaluated through an AI-augmented threat lens. The convergence of classic weaknesses with AI capabilities raises the baseline risk profile for organisations deploying or adjacent to AI systems.

CrowdStrike OpenAI LLM Integration Raises Prompt Injection Risks

ATLAS OWASP MEDIUM ▲ 6.2 CrowdStrike Blog Apr 17, 2026

CrowdStrike has announced a partnership with OpenAI's Threat Actor Collaboration (TAC) programme, positioning frontier AI models as defensive tools within the cybersecurity operations space. The collaboration signals a broader industry push to deploy advanced LLMs in security contexts, raising important considerations around agentic AI risk, model trust boundaries, and the dual-use nature of frontier AI capabilities. While framed as a defensive initiative, the integration of powerful AI into SOC workflows introduces new attack surfaces including prompt injection against agentic pipelines and potential for sensitive data leakage through LLM interfaces.

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