Blac Chyna confirmed that her Instagram account was hacked Saturday night, and that the alleged hacker could be her fiance Rob Kardashian. The unidentified hacker posted on Instagram that she had split up with Kardashian, a claim that now appears to be true. “I no longer am with Rob. I left him and took the baby and did not even let him know,” ” the hacker wrote, posing as Chyna. The hacker also threatened to post screenshots of Chyna's conversations with another man and her lawyer. “Stop using Rob! You already had his baby out of spite!!" the hacker wrote in a caption.