Verified identity only
A sign-in code expires after ten minutes and is invalidated after five incorrect entries. Sending requires a security check, at least 60 seconds between requests, and rolling limits. Only the latest successfully sent code works. GitHub and Google require verified email. To connect Google to an existing account, sign in first and use Account settings. No production development bypass exists. If a provider is unconfigured, the page says so.
Control your records
Choose an alias and whether to list your profile. Public contribution records require separate consent. Export your private platform records from your data page and request privacy corrections through a private ticket.