The hackers behind the $6.3bn (£4.7bn) Binance heist used bogus job interviews, malicious software and an internal AI tool, the company has revealed.

The world’s largest cryptocurrency exchange was compromised in an operation that began with an inadvertent download of malware in June, led to a recruitment scam in September and then a raid last week of “hot wallets” where billions of dollars worth of crypto-assets were taken.