Security support by category

Email & webmail account security directory

Compare the passkey and two-factor authentication records currently documented for verified email & webmail services.

13verified services
5passkey confirmations
12documented 2FA records

Independent snapshot: A feature is shown only when it is present in the verified project data. Unknown fields do not mean the service lacks that capability.

ServicePasskey record2FA methodsReviewed
AOL Mail login.aol.com Not yet documented Text message, Authenticator app 2026-08-27
AT&T Mail more.att.com Not yet documented Email code, Text message 2026-09-10
EarthLink Webmail webmail.earthlink.net Not yet documented Authenticator app, Text message 2026-09-10
Fastmail app.fastmail.com Confirmed Authenticator app, Text message, Security key, Backup codes, Passkey used as an additional factor 2026-07-28
Gmail accounts.google.com Confirmed Authenticator app, Text message, Security key, Approval prompt, Backup codes, Passkey used as an additional factor 2026-07-28
iCloud www.icloud.com Not yet documented Approval prompt, Text message, Security key 2026-08-27
Optimum Email webmail.optimum.net Not yet documented Not yet documented 2026-09-10
Outlook login.live.com Confirmed Authenticator app, Email code, Approval prompt, Security key, Passkey used as an additional factor 2026-07-28
Proton Mail account.proton.me Not yet documented Authenticator app, Security key, Backup codes 2026-07-28
Spectrum Email www.mail3.spectrum.net Not yet documented Email code, Text message 2026-09-06
Tuta Mail app.tuta.com Not yet documented Authenticator app, Security key, Backup codes 2026-07-28
Yahoo Mail login.yahoo.com Confirmed Authenticator app, Text message, Approval prompt, Passkey used as an additional factor 2026-07-28
Zoho Mail accounts.zoho.com Confirmed Authenticator app, Text message, Security key, Approval prompt, Backup codes, Passkey used as an additional factor 2026-07-28

Using this category view

Start with the service, then confirm its current settings

These rows are a research index, not an authentication interface. Open the independent guide to see the verified official domain and provider-owned help sources. Security options may differ by account type, device, region, or staged product rollout.

Help improve coverage without guessing

A missing method should stay unknown until an official provider source supports the claim. When a record is updated, its content date changes independently; rebuilding unrelated pages does not create a false freshness signal in the sitemap.