Secure agentic AI for your Frontier Transformation
2026-03-10T14:52:21Z•f7de722a5f1913784410e656322c693f69028a2b6bd1636a8e014c300fdaf457
AI tradecraftAiTMLLM data exfiltrationMicrosoft DefenderNext.js malicious reposNorth Korea (Jasper Sleet/Coral Sleet)OAuth redirection abuseRCE-to-C2RMM backdoorsTycoon2FAagentic AIdeveloper supply chainenterprise data exposuremalicious browser extensionsphishing-as-a-servicesecurity operationsstolen EV certificatethreat actorsthreat modeling
What happened
This Microsoft Security Blog feed highlights emerging threats and defensive guidance tied to AI, supply‑chain, and authentication abuse. Notable findings: malicious AI browser extensions harvested LLM chat histories and browsing data at scale (≈900,000 installs, >20,000 enterprise tenants); Tycoon2FA (AiTM phishing PhaaS) operated at scale affecting hundreds of thousands of organizations; signed malware using a stolen EV certificate deployed legitimate RMM tools to gain persistent backdoors; OAuth redirection flows are being weaponized for phishing/malware delivery; and developer‑targeting via
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- microsoft_security_blog
- Record identifier
- f7de722a5f1913784410e656322c693f69028a2b6bd1636a8e014c300fdaf457
- Enrichment time
- 2026-03-10T14:52:21Z
- AI-assisted enrichment
- Yes
This record may overlap with other records. Its enrichment can be incomplete or wrong, and machine assistance was used. Validate consequential decisions against the linked source and your own environment.