Exploit: USM ($136K)

HACK OR EXPLOITExploit: USM ($136K)34IMPORTANCECLOSED1NEWS MEDIA1PIECESSep 22, 2026 21:37blockboard.net

Published

What this rests on

Summary in preparation.

Market reaction

We track ETH, but we only have 1 price point in that window. The series is stored every half hour, so newer events will have it. Computing it from two points would not be a reaction, it would be a coincidence.

How the story was built

Every piece in order, with the time its news medium declares — if it is not believable we use ours and say so — and what it added to what was already known at that point. Arriving first is not the same as adding something.

first
Sep 22 21:37
DefiLlama hacks scoop our clock
Breaks the event

Thefts of a similar size

WhenWhat happenedFigure
6 months ago Quant incident $138k
8 months ago Stake Nova incident $137k
2 months ago USM · Arithmetic Error incident $136k
2.5 years ago Z123 incident $136k
3.4 years ago BabyDogeCoin · Lack slippage protection incident $135k

4201 incidents stored · 1523 were as large as this one or larger ($136k)