{"data":{"id":"a63f359b-adcf-42f4-b198-1031fa15a550","title":"Weaponized Email AI Assistants Could Help Attackers Hijack Accounts","summary":"Researchers at Barracuda Networks demonstrated how attackers can exploit AI assistants built into email accounts to conduct sophisticated account hijacking attacks. In their proof of concept, attackers with a compromised lower-level email account used the AI chatbot to cover their tracks, gather intelligence about the organization, craft convincing phishing emails mimicking the compromised user's writing style, and ultimately hijack a CEO's account to authorize fraudulent wire transfers. The attack works because the resulting phishing emails come from legitimate accounts, bypass security filters, and match the expected communication patterns of trusted employees.","solution":"N/A -- no mitigation discussed in source.","labels":["security","safety"],"sourceUrl":"https://www.securityweek.com/weaponized-email-ai-assistants-could-help-attackers-hijack-accounts/","publishedAt":"2026-08-04T13:54:13.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["prompt_injection","jailbreak"],"issueType":"news","affectedPackages":null,"affectedVendors":["Microsoft"],"affectedVendorsRaw":["Barracuda Networks","Email AI Assistants","Microsoft Copilot for Microsoft 365"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"patchAvailable":null,"disclosureDate":"2026-08-04T13:54:13.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality","integrity"],"aiComponentTargeted":"api","llmSpecific":false,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null}}