Railgun, a crypto privacy protocol, successfully blocked Inferno Drainer's attempt to launder 174 $ETH worth approximately $533,000. The stolen funds were returned to the original wallet after being intercepted by Railgun. Inferno Drainer, known for its phishing scams, had previously ceased operations but resumed in May due to increased demand and less competition. Despite a period of inactivity, it claimed to have drained over $125 million in crypto assets. Meanwhile, Railgun has faced scrutiny for allegedly being used by groups like the North Korean Lazarus Group to launder funds, although Railgun denies these claims.