OK so you may of noticed that GTA did a big update where all servers where taken offline for a few hours.
Why did they do this? To stop cheating.
What did they achieve? This update was to remove all cash that was made by illegitimate means.
What about the people that wasn’t cheating but had loads of cash by mistake? Your cash will be removed but you will keep all your items.
What did Rockstar Games say? This is part of the post they made on there website.
Those who actively engaged in cheating and exploiting the game in this manner will, however, be subject to in-game penalties at our discretion. This may include being placed in isolated cheater pools or banned from GTA Online altogether.