According to the company's recently released quarterly earnings report, Facebook still has over 76 million fake user accounts. The number of “undesirable” accounts, however, has dipped to just 0.9 percent of the total number of monthly active users, which is around 1.06 billion. The figures show a significant slump as compared to the 15.1 million spam accounts that was reported in June 2012.

Facebook explains an “undesirable” user is any account that is “intended to be used for purposes that violate our terms of service, such as spamming.” Facebook also takes into consideration of duplicate accounts while summing up the total number of valid users. Duplicate accounts, Facebook further explains, is an “account that a user maintains in addition to his or her principal account”, and are about 5 percent or 53 million accounts of Facebook monthly active users.

Overall, Facebook's monthly active users stood 1.06 billion as of December 31, 2012, observing a surge of 25 percent year-over-year. The number of daily active users stood around 18 million on average for December 2012, an increase of 28 percent year-over-year. Also, approximately 1.3 percent of the monthly active users or 13.8 million accounts are classified as “mischaracterized” accounts, which Facebook says should have been Pages.