India, Oct. 30 -- The recent $6.3 billion cryptocurrency heist at Binance has once again raised questions about the security of digital assets. But not every major crypto theft has ended with the attackers keeping the money. In several unusual cases, hackers have returned millions of dollars, sometimes after negotiations with the affected platforms.

(Also read: Binance confirms crypto heist, biggest in history, but no one's sure what broke)

Here are four notable incidents where stolen cryptocurrency was recovered.

In August 2021, hackers stole approximately $610 million from Poly Network, a platform that allows users to transfer cryptocurrencies between different blockchains.

However, the case took an unexpected turn when the unidenti...