KuCoin

What happened

On 25 September 2020 attackers drained roughly $281 million from KuCoin's hot wallets. About 84% was recovered over the following weeks through on-chain tracing, token issuers freezing and reissuing supply, and blacklisting by other exchanges. KuCoin's insurance fund covered the remainder, and users were made whole.

What to take from it

That recovery depended on other people's goodwill — issuers willing to freeze tokens and venues willing to blacklist addresses. Treat it as a favour the industry granted, not a protection you can count on.

Dates and figures are widely reported public estimates from coverage at the time, not KripZen's own audited data.