Cyber Security Microsoft Is Retiring SMS Codes for Microsoft 365 | What UK Businesses Must Do Before February 2027
Microsoft retires SMS and voice MFA codes on 1 February 2027, and starts prompting your staff to set up passkeys from 1 September 2026. Here are the four dates that matter, why "we all use the Authenticator app" is not a get-out, and what to do before the prompts start.
Iain Godding
10 Aug 2026