Guides
How crypto exchange hacks happen: the weak spot is rarely the key itself
Most exchange hacks start in hot wallets, the online wallets that pay out withdrawals. Attackers rarely break the cryptography. They get into the systems and people that approve transactions, then rush to swap stablecoins before issuers can freeze them.
Security
Duelbits lost $7 million from its hot wallets. Five weeks later, still no explanation
The crypto casino went offline on September 24, said user funds were safe and has since relaunched. On-chain data show the stolen value was swapped into ETH, which can't be frozen, and moved on.