One of the 12 largest DeFi, Crypto hacks. My summary here: https://crypto.security/crypto-blockchain-security/bitgrail-hack/
On February 8, 2018 Bitgrail, an Italian crypto exchange, that was one of the main portals for trading Nano tokens, claimed it was hacked of 17 million customers owned Nano Tokens worth about $195 Million dollars. But others — including the developers who created the stolen cryptocurrency — have suggested not all may be as it appears.
