The three built-in quarantine policies differ on exactly two settings, and one of them is a silent ticket generator sitting in every tenant by default. Here’s the decision map, the override that ignores your permissions, and the PowerShell to audit it.
On September 1, 2026, Microsoft auto-enables passkeys and flips your registration campaign to Microsoft-managed. There is a tenant-level opt-out — passkeyDynamicMigration — that delays it. Here’s what it actually buys you, why setting it safely needed a script rather than a one-line PATCH, and why February 1, 2027 is the date that can’t be postponed.
A domain controller dies, it held every FSMO role, and there is no usable backup. It feels like the domain is gone. It usually isn’t — here’s the shape of the recovery, and the one mistake that turns a bad day into a rebuild.
When a client says they can’t attach files to an external Teams chat, it usually isn’t broken — it’s working exactly as Microsoft intended. Here’s what’s really happening, and why the fix lives in PowerShell instead of the admin center.