# Symbiosis Bridge Attacker Minted 46 Billion Fake Bitcoin Tokens and Realized About $336,000

The protocol recovered roughly 15 BTC into a team multisig, offered a 20% white-hat bounty that expired on September 13, and has not yet set compensation terms for liquidity providers.

- Published: 2026-09-14T05:49:22.021Z
- Canonical: https://polylog.news/crypto/2026-09-14/symbiosis-bridge-attacker-minted-46-billion-fake-bitcoin-tok
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CryptoSlate](https://cryptoslate.com/hackers-mint-trillions-in-fake-bitcoin-but-15-btc-bridge-recovery-leaves-liquidity-providers-unpaid/), [The Block](https://www.theblock.co/news/defi/2026-09-13-symbiosis-says-it-recovered-15-btc-after-bitcoin-bridge-exploit-offers-attacker-20-bounty-414568), [Rekt News](https://www.rekt.news/)

An attacker exploited the BridgeV2 contract of the cross-chain protocol Symbiosis on September 11 and minted roughly 46.1 billion syBTC, the wrapped representation of Bitcoin on the bridge, without depositing the Bitcoin that is supposed to…

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