North Korean hackers have stolen $1.5 billion in cryptocurrency in a single heist, making it the largest crypto hack on record, security experts told CNN.

Researchers spot the stolen funds moving through cryptocurrency wallets that were used in earlier heists attributed to North Korea's Lazarus hacking group.

North Korea is behind the massive crypto hack, according to several blockchain monitoring firms and a well-known researcher

The cryptocurrency industry and those responsible for securing it are still in shock following Friday’s heist, likely by North Korea, that drained $1.5 billion from Dubai-based exchange Bybit, making the theft by far the biggest ever in digital asset history.

Investigation revealed that BingX, & Phemex hacks were also connected to the same cluster as Bybit's, confirming the threat actor’s identity as the Lazarus group.

Following the revelation Friday from cryptocurrency exchange firm Bybit that hackers stole digital tokens worth about $1.5 billion – in what may be the biggest crypto heist of all time – CEO Ben Zhou wrote on X Sunday that it has replenished its reserves. Bybit was able to do this through a mix of emergency loans and large deposits.

Lazarus Group, hackers based in North Korea, tricked Bybit CEO Ben Zhou into approving a transfer of 400,000 ethereum tokens from his company's cold wallet.

Companies and experts have found evidence linking the $1.5 billion Bybit cryptocurrency heist to North Korean Lazarus hackers.

North Korean hackers have begun laundering $140 million of the $1.46 billion stolen from Bybit through anonymous exchanges

The hack that rocked the crypto market and saw most prices tumbling was called the "largest crypto theft of all time, by some margin," by Elliptic's Tom Robinson, co-founder and chief scientist. "The next largest crypto theft would be the $611 million stolen from Poly Network in 2021. In fact it may even be the largest single theft of all time."