In terms of cash, withdrawals and especially deposits comply with a certain number of provisions. Even if it's your savings, there are safeguards.
The subject had also hit the headlines in 2019 from a simple post on euros, please provide proof(s) of expense (plane ticket, quote, etc.). » At the time, management spoke of an “isolated initiative”, launched an investigation and explained that under no circumstances did it ask for proof of expenses to withdraw cash.