Passkeys by Default: What MC1426371 Actually Asks of MSPs
Microsoft is making passkeys the default sign-in and retiring native SMS and voice MFA. MC1426371 sets the clock: passkeys auto-enable September 1, 2026, and Microsoft-provided telecom delivery ends February 1, 2027. Here’s what changes on its own, what quietly changes underneath you, and the two decisions every MSP has to make before the dates arrive.