WASHINGTON, Aug 12 (Reuters) – Hackers pulled off the biggest ever cryptocurrency heist on Tuesday, stealing more than $600 million in digital coins from token-swapping platform Poly Network, only to return nearly all the assets less than 48 hours later, the company said. Here is what we know so far about the heist. WHAT IS POLY … Read More “Hacker returns most of $600 mln crypto tokens taken -Poly Network” »