A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge
Published . Updated .
Two software bugs allowed the attacker to create more than 2,000 times Bitcoin’s maximum supply in unbacked syBTC. Symbiosis puts preliminary losses at 9.97 BTC.
Directly affected
- No company is named in this report.
Indirectly affected
- IBIT iShares Bitcoin Trust
This price moves with the crypto market
- COIN Coinbase
The crypto exchange moves with trading volumes
- MSTR Strategy
This company's value is tied to its bitcoin holdings
- MARA MARA Holdings
Bitcoin miners move with the bitcoin price
- RIOT Riot Platforms
Bitcoin miners move with the bitcoin price
- HOOD Robinhood
Retail trading apps move with crypto volumes
- BITB BITWISE BITCOIN ETF TR
GA selected BITB as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
- BITU PROSHARES ULTRA BITCOIN ETF
GA selected BITU as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
- BITX 2X BITCOIN STRATEGY ETF
GA selected BITX as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
- GBTC GRAYSCALE BITCOIN TRUST ETF
GA selected GBTC as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
Price reaction, T-5 to T+3
Two software bugs allowed the attacker to create more than 2,000 times Bitcoin’s maximum supply in unbacked syBTC. Symbiosis puts preliminary losses at 9.97 BTC.
Source: CoinDesk
The price since 15 Sep 2026: Bitwise Bitcoin ETF (BITB) versus the S&P 500
Since the first closing price after “A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge,” Bitwise Bitcoin ETF (BITB) is +7.52%. The S&P 500 fund (SPY) is +1.66% over the same days, a +5.85% difference versus the market.
Who gains and who loses around Bitwise Bitcoin ETF (BITB)
Companies tied to this story
- BITB Bitwise Bitcoin ETF
Bitwise Bitcoin ETF (BITB) is linked, with no stored direction, medium confidence in the 15 Sep 2026 story “A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge.” Reason on file: GA selected BITB as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- BITU Proshares Ultra Bitcoin Etf
In “A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge,” Proshares Ultra Bitcoin Etf (BITU) is linked, with no stored direction, medium confidence. Reason on file: GA selected BITU as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- BITX 2X Bitcoin Strategy Etf
2X Bitcoin Strategy Etf (BITX) is linked, with no stored direction, medium confidence in the 15 Sep 2026 story “A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge.” Reason on file: GA selected BITX as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- GBTC Grayscale Bitcoin Trust ETF
In “A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge,” Grayscale Bitcoin Trust ETF (GBTC) is linked, with no stored direction, medium confidence. Reason on file: GA selected GBTC as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- IBIT iShares Bitcoin Trust ETF
iShares Bitcoin Trust ETF (IBIT) is linked, with no stored direction, medium confidence in the 15 Sep 2026 story “A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge.” Reason on file: GA selected IBIT as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
- ARKB Ark 21Shares Bitcoin ETF
For “A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge,” Ark 21Shares Bitcoin ETF (ARKB) is linked, with no stored direction, medium confidence. Reason on file: GA selected ARKB as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
Bitwise Bitcoin ETF (BITB)
On 15 Sep 2026, “A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge” is the story that connects Bitwise Bitcoin ETF (BITB) to this story.
What ties Bitwise Bitcoin ETF (BITB) to the headline is this: GA selected BITB as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
Also listed, Proshares Ultra Bitcoin Etf (BITU): GA selected BITU as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
Dates in the story, and the Bitwise Bitcoin ETF (BITB) price range
BITB traded between 43.26 and 47.30 across 20 sessions. The latest close on file is 44.34. BITU traded between 13.70 and 16.49 across 20 sessions. The latest close on file is 14.38. BITX traded between 17.70 and 21.33 across 20 sessions. The latest close on file is 18.59.
How strong the case is around Bitwise Bitcoin ETF (BITB)
46 out of 100
“A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge” scores 46 out of 100. The score uses 1 sources, and 6 linked companies.