Which wallets lost stablecoins this week?

TLDR

Two incidents were widely reported this week: two wallets lost about $2.3M USDT after keys were compromised, with funds swapped to 757.6 ETH and sent through Tornado Cash, per a security alert referenced by a major outlet tweet.

1. Two wallets drained of about $2.3M USDT (keys compromised, funds laundered via Tornado Cash) on 23 Dec (UTC) security alert summary.
2. A trader lost nearly $50M USDT via an address poisoning scam on 20 Dec (UTC) incident summary.

Deep Dive

1. USDT Drains (~$2.3M)

Two separate wallets were compromised and lost about $2.3M USDT before the funds were converted to 757.6 ETH and routed through Tornado Cash. This was highlighted in security monitoring and echoed by a major outlets alert post on 23 Dec (UTC) alert post.

• Follow?on coverage noted the Tornado Cash path and conversion specifics secondary report.
• Additional summaries consistently attribute the notice to a security firms monitoring and align on the mechanism (key compromise, rapid swap, mixing) aggregate note.

2. Address Poisoning (~$50M USDT)

A separate case involved a large USDT transfer (~$50M) sent to a spoofed address due to address poisoning, where an attacker mimics a victims address format in recent history so the victim pastes the wrong one. Reports indicate conversion to ETH, distribution across wallets, and partial mixing on 20 Dec (UTC) incident summary.

• Address poisoning works by planting look?alike addresses in a wallets recent activity list, tricking copy?and?paste routines.
• The result is an irreversible misdirected transfer, often laundered quickly.

Conclusion

Stablecoin losses this week centered on key compromise and address poisoning, with rapid conversion and mixing pathways making recovery unlikely. The actionable takeaway is operational: strengthen key custody, validate destinations out?of?band, and monitor approvals and transfer patterns to reduce exposure to these high?speed theft vectors.