Jacob Gadikian, CEO of blockchain service company Notional Labs, recently revealed that the collapse of Terra and the depegging of UST from the US dollar were not caused by the project's founder Do Kwon. The real culprit behind the fraud was an unidentified attacker who is still at large. He pointed out that the validator group was attacked at the time and hundreds of millions of people were manipulated for no reason. Gadikian also released a video showing an attack on the Cosmos Hub Security Testnet, which produced the same effect as the alleged attack that caused UST to depeg. Other investigators agreed with Gadikian, saying that during the depegging period, a large number of robot transactions prevented Terra from restoring the UST dollar peg through its economic model, and the on-chain transaction volume surged 6 times.