Microsoft Defender email security benchmarking: Key insights from one year of data
2026-06-17T14:52:18Z•9213187f2b1ff399e8140553c19527fc6f13712357a8d529dba529a505f7e908
AI-securityASSERTAnthropicAzure AICI/CDClaude CodeGitHub ActionsM365 CopilotMDASHagentic-AIcredential-stealingdependency-confusionemail-securityendpoint-protectionincident-responsenpmprompt-injectionred-teamingsocial-engineeringsupply-chaintelemetry
What happened
Collection of Microsoft Security Blog posts (Jun 2026) covering multiple high‑risk supply‑chain and AI/agent security issues. Key items: a large-scale npm supply‑chain campaign (“Miasma”) that compromised >90 @redhat-cloud‑services package versions to steal credentials and propagate; a dependency‑confusion campaign using 33 malicious npm packages to profile developer/build environments; a prompt‑injection pathway in Anthropic’s Claude Code GitHub Action enabling potential workflow secret access and guidance for securing AI‑powered CI/CD; updated taxonomy of seven new failure modes in agentic A
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- microsoft_security_blog
- Record identifier
- 9213187f2b1ff399e8140553c19527fc6f13712357a8d529dba529a505f7e908
- Enrichment time
- 2026-06-17T14:52:18Z
- AI-assisted enrichment
- Yes
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