We are aware of issues some users are having with logging into Yahoo accounts and are working to fix this as quickly as possible.

Protect yourself from government-backed attackers

We continuously monitor for suspicious activity, including from government-backed attackers. If we strongly suspect your account is being targeted, we’ll notify you with the following message:

"Government-backed attackers may be targeting your account."

This notice is displayed when you sign in to your Yahoo account. It won't ask you to provide any personal or authentication information. If you see this notice, which will display for up to 10 days, it will instruct you to:

We also recommend reviewing your account for unusual activity and taking steps to secure your account.