We named it, then it was frozen. Mercado Bitcoin hack, Nov 2, UTC.
15:02 and 15:42: we emailed the exchange's security team the attacker's next hops, including one holding 2,236,100 USDC.
15:05: our post named that hop publicly.
16:19: Circle froze the attacker's main wallet, the one the exchange itself had listed.
16:23: we tagged Circle on the 2,236,100 USDC hop.
16:30: Circle froze it. A smaller hop we named was frozen at 16:27.
The freezes most likely came through the exchange's request. The USDC contract only shows the order of events.
Still not frozen: 979,527 USDC and 10,468 EURC on the attacker's Stellar account.
15:02 and 15:42: we emailed the exchange's security team the attacker's next hops, including one holding 2,236,100 USDC.
15:05: our post named that hop publicly.
16:19: Circle froze the attacker's main wallet, the one the exchange itself had listed.
16:23: we tagged Circle on the 2,236,100 USDC hop.
16:30: Circle froze it. A smaller hop we named was frozen at 16:27.
The freezes most likely came through the exchange's request. The USDC contract only shows the order of events.
Still not frozen: 979,527 USDC and 10,468 EURC on the attacker's Stellar account.
