North Korean cryptocurrency thieves tricked a Binance software engineer into downloading malware onto their work-issued computer during a fake job interview process before last week's record-breaking $6.3 billion heist. In an incident report published on Tuesday, the cryptocurrency exchange said several techniques - including social engineering via fake job interviews, malware downloads, compromised internal AI tooling, endpoint takeover, and an “advanced transaction-authorization method” - led to the October 29 security breach. “Our current investigation indicates that this was a sophisticated, multi-stage campaign,” the incident report said. “It was not a single isolated breach or a simple phishing incident.” Over the weekend, the FBI attributed the theft to TraderTraitor, a North…