Switch to Protonmail Reason #28: Review authentication logs for suspicious account access

A quiet account takeover can continue while you assume your mailbox is safe.

Why this matters

A quiet account takeover can continue while you assume your mailbox is safe. Privacy is easier to defend before this information is collected than after it has spread.

The protection

Proton offers authentication logs that can help you spot unexpected sign-ins.

Take action

Review logs after a suspicious message or device loss, then change credentials and revoke sessions as needed. Email protection depends on the route and settings. Ordinary mail involving outside providers is not automatically end-to-end encrypted, and email metadata is not universally hidden.

Sources

Proton Mail security checklist.