Instagram users are reporting the same bizarre hack

Krista, an Instagram user with more than 4,500 followers on her fitness account, noticed something strange on Saturday evening: she had been logged out of her account. 

When she tried to log back in, she got a message that her username didn't exist. She soon realized her handle and photo had both been changed, as had the email address and phone number associated with her account. She tried to request a password reset, only to see the new email linked to her account was now a .ru email: she had been hacked.