I can name at least one and I am sure I know several for which this is true.
All the online poker clubs settlements happen with Venmo and a lot of PPH bookies use it to settle.
It's a weird one. I don't believe these people were hacked. I think it's an inside job from someone that can't see the balances or we would hear more about it.
I mean how fucking hard is this to solve if Venmo actually tried? Jesus