BGI Dev Team here.
We were very busy working on the newest update, so a lot of cheaters seem to have slipped through our security system. We're aware of that and will be actively banning all the suspicious players in the following days.
If you want to help us speed up the process, please provide us with information of any of the players that you consider to be cheaters. We'll review their profiles and make a decision based on that.
Thanks for your patience,
BGI Dev Team