Yahoo Mail users, we have some bad news: It’s time to change your e-mail password.

In a company blog post Thursday night, Yahoo revealed that a number of users’ passwords and usernames were exposed to cyber-attackers who used malicious computer software to gain access to lists of Yahoo Mail credentials.

The information was likely collected from a third-party database, Jay Rossiter, Yahoo’s senior vice president of platforms and personalization products, wrote in the posting.

The company is resetting passwords on accounts that have been affected and is taking steps to allow users to re-secure their accounts. It is sending notification e-mails instructing those users to change their passwords; users may also receive a text message, if they’ve shared their phone number with the company.

It’s a song-and-dance that users may be tiring of, but it is important for Yahoo account holders who were swept up in the attack to change their passwords for immediately. They should also change their log-in credentials for any account that may share their Yahoo password, particularly if they use their Yahoo e-mail as their username. The same is true if you use a similar e-mail address as the username — it’s not a big leap for hackers to think that you may be both jdoe@yahoo.com and jdoe@gmail.com.

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SOURCE: Hayley Tsukayama 
The Washington Post