VS Code Extension Policies Existed for 18 Months — GitHub Didn’t Use Them. Will Your Clients?
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VS Code Extension Policies Existed for 18 Months — GitHub Didn’t Use Them. Will Your Clients?

VS Code’s AllowedExtensions policy shipped in November 2024. GitHub — a Microsoft subsidiary — wasn’t enforcing it when a poisoned Nx Console extension walked out with 3,800 internal repos in 11 minutes. The policy framework was never missing. The enforcement was. Here’s the Intune remediation script and the Copilot/MCP guardrails that close the exact attack path TeamPCP used.

Security: Managing Shadow Tenants with Microsoft Entra Governance
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Security: Managing Shadow Tenants with Microsoft Entra Governance

If you manage Microsoft Entra for clients, shadow tenants are now easier to spot with related-tenant discovery signals (B2B, multitenant apps, and shared billing). The practical playbook is straightforward: enable continuous discovery, triage unknown tenants, and quarantine untrusted ones until assessed. Also plan now for the August 15, 2026 retirement of the legacy workforce tenant creation flow.

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