1. Brain wallets are not secure and ‘no one should use them,’ says study;Buntinx,2016
2. Speed Optimizations in Bitcoin Key Recovery Attacks
3. Binance Security Breach Update,2019
4. Crypto Exchange BitMart Hacked With Losses Estimated at $196M,2021
5. The aftermath of Axie Infinitys ’$650M Ronin Bridge hack,2022