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A 25-cent Bitcoin deposit was enough to expose a serious bridge security flaw.
On September 11, an attacker caused the minting of around 46.1 billion syBTC from just 330 satoshis.
The important part is not the massive number.
It is the broken rule behind it:
Locked BTC = minting BTC-backed tokens
Two verification issues allowed the system to treat a tiny deposit as a much larger amount.
Only around 4.39 WBTC, worth approximately $336,000, was actually extracted before the affected route was shut down.
The lesson is simple:
Bridges must verify the actual assets locked before creating the tokens that represent them.
A single unverified input can corrupt the entire accounting model.
$BTC
#Bitcoin #DeFi
On Sept 11, an attacker caused roughly 46.1B syBTC to be minted from just 330 satoshis.
The important part isn’t the huge number.
It’s the broken rule underneath:
BTC locked = BTC-backed tokens minted
Two validation issues allowed the system to treat a tiny deposit as a much larger amount.
Only about 4.39 WBTC, worth roughly $336K, was actually extracted before the affected route was stopped.
The lesson is simple:
Bridges need to verify the real assets locked before creating tokens that represent them.
One unchecked input can break the entire accounting model.
$BTC
#Bitcoin #DeFi