That would appear to be true yes I have a side load of the real Instagram and also black gram and get the following error when trying to login to Blackgram
The problem is, is that I'm not signed in to either when I start both apps it asks me to login
When I do login to the actual account it states this
Attachment 218075
Then I Received an email from Instagram with the following text
"We detected some suspicious activity that suggests your Instagram account may have been compromised. Don't worry, we've taken measures to secure your account. As a result, we need you to reset your password, using the links below:"
Just a heads up