Account-Takeover

Bank of America Warns AI Agents Risk Banking Credential Theft

ATLAS OWASP HIGH ▲ 6.5 TechCrunch AI Oct 28, 2026

Bank of America has issued a customer advisory warning against sharing banking credentials with AI assistants or agents, highlighting risks of unauthorised financial transactions and credential leakage. The warning reflects a broader industry challenge as agentic AI tools increasingly seek access to sensitive financial accounts. Security vulnerabilities in AI agents could expose banking credentials to financially motivated threat actors.

Heap Overflow and SSO Flaw Let Hackers Access OpenAI Repos

ATLAS OWASP CRITICAL ▲ 8.5 OpenAI (via HN) Sep 18, 2026

Researchers from HacktronAI chained a heap buffer overflow in libheif (via ImageMagick on Discourse) with an OpenAI SSO misconfiguration to achieve RCE on community.openai.com, ultimately gaining access to employee ChatGPT and Codex accounts. With those compromised accounts, attackers could pivot to OpenAI's internal GitHub monorepo and connected services including Slack and email. The full exploit chain was discovered and disclosed responsibly within 72 hours, earning a $6,500 bug bounty.

Infostealer Malware Hijacks Claude Sessions via Cookie Theft

ATLAS OWASP HIGH ▲ 7.2 BleepingComputer Aug 31, 2026

Anthropic has confirmed that infostealer malware families including Vidar, LummaC2, StealC, and RedLine are being used to steal authenticated Claude browser sessions, granting attackers API-level access without needing credentials or 2FA. The attack bypasses standard authentication controls entirely by harvesting session cookies from compromised endpoints, allowing threat actors to consume victims' Claude usage quotas and potentially access stored payment data. Anthropic is revoking sessions and issuing refunds, but the incident highlights a systemic risk for AI service accounts when endpoint security is weak.