WHAT USERS CAN DO

Yahoo recommends:

Change your password and security questions and answers for any other accounts on which you used the same or similar information used for your Yahoo account.

Review your accounts for suspicious activity.

Be cautious of any unsolicited communications that ask for your personal information or refer you to a web page asking for personal information.

Avoid clicking on links or downloading attachments from suspicious emails.

Cybersecurity experts recommend:

Use two-factor authentication for logins.

Make up security question answers that aren’t true, so they can’t be easily guessed by criminals who may have other information about you.

Don’t use the same usernames and passwords across multiple accounts and services.