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CM

Developer tools · cm.com

Two second factors on offer: approval in an app and text message. The strongest is approval in an app.

Recommended setup

CM Authenticator

Approve sign-ins in the service's own app. Only ever approve a request you just started.

PushApproval in an appCM Authenticator
SMSText messageSupported

Not offered: security key, authenticator app, hardware token, phone call, email code.

Switch it on

General steps; menu names vary. CM's own guide has the exact screens.

  1. Sign in to CM and open your account's security settings. Look for two-step verification or two-factor authentication. CM's own guide shows the exact screens.
  2. Install CM Authenticator on your phone and sign in. Turn on sign-in approvals when it asks.
  3. Save the backup codes. Keep them in your password manager or print them; they're your way back in if you lose your phone or key.
CM's setup guide ↗