Explainer-How hackers stole $613 million in crypto tokens from Poly Network

FILE PHOTO: A man holds a laptop computer as cyber code is projected on him in this illustration picture taken on May 13, 2017. REUTERS/Kacper Pempel/Illustration/File Photo

WASHINGTON (Reuters) - Hackers pulled off the biggest ever cryptocurrency heist on Tuesday, stealing $613 million in digital coins from token-swapping platform Poly Network, only to return $260 million https://www.reuters.com/technology/defi-platform-poly-network-reports-hacking-loses-estimated-600-million-2021-08-11 worth of tokens less than 24 hours later, the company said. Here's what we know so far about the heist.

WHAT IS POLY NETWORK?