Facebook warns 1 million users about stolen usernames, passwords

The company announced Friday that it identified more than 400 malicious Android and iOS apps this year that target internet users in order to steal their login information. Meta said it informed both Apple and Google about the issue in order to facilitate removal of the apps.

According to Cnet.com, the apps pretended to offer mobile games, photo editing, fitness tracking or brighten a phone's flashlight.

Facebook users who might have logged into the social network on a malicious app will receive a security notice that includes steps they can take to protect their accounts.

Some of those steps include resetting their Facebook password, adding an extra layer of security known as two-factor authentication and turning on alerts so users know when someone has tried to sign into their Facebook accounts. 

Meta's findings highlight the risks that could come with providing your Facebook account information to log into apps.