Two of these are true. One is false. Which one is the lie?
When attackers drained about $600 million from the Ronin bridge in March 2022, the theft went unnoticed for six days. It only came to light when a user tried to withdraw 5,000 ETH and couldn't.
A flash loan only has to be repaid by the end of the block it was borrowed in, so the borrow and the repayment can sit in two separate transactions inside that block.
After an attacker took about $610 million from Poly Network in August 2021, the project publicly invited the attacker to become its Chief Security Advisor and offered a $500,000 bounty.
Answer: 2 is the lie.