Hacker 'Wins' Over $110K in EOS Betting Game Using DeFi Service REX
A hacker spent $1,000 in EOS to steal more than $110,000 in cryptocurrency through an exploit of EOS gambling game EOSPlay.
Biggest DeFi service EOS REX used
An alleged bug in EOSPlay allowed the attacker to steal 30,000 EOS via using EOS REX, a major decentralized financial (DeFi) service enabling EOS lending in exchange for extra CPU on the EOS blockchain, crypto-focused publication CryptoSlate reports Sept. 14.
According to the report, the hacker used REX in order to ensure that blocks were filled with their transactions, allowing them to win continuously on EOSPlay. As previously reported, EOS REX is the biggest DeFi platform by a comfortable margin, having 331 million in EOS placed on the platform at press time, according to DeFi.Review website.
Citing crypto entrepreneur Jared Moore, the report says that the hacker had to spend approximately 300 EOS ($1,200 at press time) to set up the attack, which involved a number of subsequent transactions indicating consecutive wins on the EOS decentralized application (DApp).
Block.One CTO: EOS network not affected
Daniel Larimer, CTO at EOS developer company Block.One, tweeted that the hacking incident did not affect EOS network but rather caused a network overload resulting in no extra bandwidth available on a free basis. He said:
“EOS is operating correctly. This is no different than when attackers flood eth or bitcoin with high fee transaction spam. The network didn’t freeze for token holders, there was just no extra bandwidth available for free use.”