Does Google need to lock down the Google Play store?

I really feel for the victims of this scam, as well as others that have been perpetrated on the Google Play store. People work really hard for their money, day in and day out. Then they go to buy an app that they think will help protect them from the bad guys, and it turns out the app developer is one of the bad guys! That has to be extremely frustrating for all of the people that were hoodwinked by this bloodsucking criminal. Scams like this are very dangerous for Google. Each time they happen they shake people’s faith and trust in the integrity of the Google Play store.