Have you logged in to your Instagram lately? A hack circulating this month has Instagram users locked out of their accounts because a hacker changed all the profile data, according to a report ...

A bizarre Instagram hack appears to be spreading: users' account names, bios, and profile avatars are changed, as is all their contact information.

Six million Instagram accounts hacked A hack believed to target only celebrity accounts on Instagram has also accessed millions of users’ private data.

"If you find yourself locked out of your account, you will be able to choose two of your Instagram friends to verify your identity and get back into your account," Instagram notes in a blogpost.