Symbiosis: a vulnerability in Symbiosis’ Bitcoin Bridge allowed an attacker to mint unbacked token… ($775,000)

HACK OR EXPLOITSymbiosis: a vulnerability in Symbiosis’Bitcoin Bridge allowed an attacker to mintunbacked token… ($775,000)34IMPORTANCECLOSED1NEWS MEDIA1PIECESSep 25, 2026 09:28blockboard.net

What this rests on

Summary in preparation.

Market reaction

BT Bitcoin the event is about this asset from 2 h before to 4 h after the line marks the first headline
published
+0.96 % before publication
-0.21 % after
$84,647price at publication
12series points

The move was larger before the first headline than after. That is an observation, not an explanation: the market also moves on things nobody publishes.

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.

Thefts of a similar size

WhenWhat happenedFigure
1.5 years ago Roar · Roar lost $777k to a rug pull on april 16, 2025. incident $777k
3 months ago BarnBridge incident $776k
2 months ago Ajna V2 · Liquidation Logic Flaw incident $775.4k
37 days ago Symbiosis incident $775k
3.4 years ago Sturdy V1 · Read-Only Reentrancy incident $775k

4200 incidents stored · 999 were as large as this one or larger ($775k)

What could happen next

What the prediction markets currently price as likely. This is context, not a forecast of ours: there is money on it, and that is all we show.

2 % +0 pts
Kalshi · $4,517,337 of open interest · resolves on Jan 1, 2027
1 % no series
Kalshi · $1,022,099 of open interest · resolves on Oct 1, 2026
4 % +0 pts
Kalshi · $754,413 of open interest · resolves on Jan 1, 2027
11 % +0 pts
Kalshi · $601,306 of open interest · resolves on Jan 1, 2027