A fake follower is any account created for a reason other than normal Instagram use. This can be to inflate likes or followers, spam other users or collect data on other Instagram accounts. They are not your target customers.
In Modash, we identify three types of suspicious accounts.
Mass followers: These are accounts that follow 1k+ accounts. Could be your high school Greg who follows a bunch of acccounts and is active on the platform once every 2 years. Get it together, Greg!
Suspicious mass followers: These are account that follow 1k+ accounts and the vibes are similar to bots & fakes.
Bots & fakes: These are accounts that are most likely bots and fakes.