
Inside the $91M Ledger Reseller Wallet Theft
Galaxy Research newsletter piece on the roughly $91M theft from buyers of Ledger hardware wallets sold by the reseller CryptoBilis. A hidden component reads the 24-word recovery phrase off the screen during setup and sends it over LTE via an eSIM. The Secure Element and Genuine Check are untouched, so the check passes on tampered units. It traces the drain across 474 victim addresses on Bitcoin, Ethereum and TRON, including 88% of the value moving in one hour on Oct. 9, and the laundering and freezes (Tornado Cash, Tether). It also places the incident among the quarter's other custody and infrastructure failures (Coldcard weak seeds, Liquid, Bitget) and gives buying and operational guidance.
What it is
Galaxy Research's account of the roughly $91M theft from buyers of Ledger wallets sold by the reseller CryptoBilis (listed on Ledger's site as an authorized reseller for Indonesia, Malaysia and the Philippines). It matters mainly for who is exposed and what Ledger told them to do.
How it works
- A separate component inside the enclosure reads the screen during setup, captures the 24-word phrase and sends it out over LTE through a provisioned eSIM.
- The Secure Element and Ledger's OS are untouched, so Genuine Check passes on a tampered unit. Do not treat that check as evidence of integrity.
- Independent teardowns have found at least three generations of the implant. The latest is a professionally fabricated flex circuit hidden under the display.
- Ledger says its own systems and direct sales channels were not compromised, and that every confirmed case so far involves CryptoBilis.
Preconditions / Affected
- Anyone who bought through CryptoBilis, which Ledger told to check the past 90 days.
- Restoring an existing seed onto a tampered device is also exposed. Some drained addresses date to 2021, which Galaxy reads as old seeds restored onto tampered units.
- Nearly all drained bitcoin addresses had never spent before, so these were cold-storage balances.
What to do
Ledger's instructions to CryptoBilis buyers:
- If you have not set the device up, don't.
- If you already did, move funds to a new device with a newly generated seed.
Galaxy's general guidance:
- Buy direct from the manufacturer.
- Treat any device that arrives already set up, or with a pre-printed seed, as compromised.
- For balances you cannot afford to lose, spread keys across vendors and locations, so one tampered device or buggy RNG is a scare rather than a loss.
- Institutions should use custody controls that assume any one device or vendor can fail.
Caveats
- Galaxy's tally is a floor: it covers Bitcoin, Ethereum, Arbitrum, Polygon and TRON but not BNB Chain. Other trackers say $93M to $95M.
- Ledger calls the volume "limited." The page says "at least one" implanted device was confirmed, and the scope beyond CryptoBilis is not established.
- As of Oct. 15, about $56.6M was still at attacker addresses and only Tether's $10M freeze is recoverable. Galaxy argues bitcoin and ETH cannot be clawed back.
- Galaxy explicitly does not attribute the quarter's incidents to AI tooling. The AI framing is its opinion, not a finding.
Organisations named here
- Blockstream
- Coinkite
- Genuine Check
- hardware implant
- Liquid
Technologies named here
- Ledger Genuine Check
- Secure Element
- Coldcard firmware
- Liquid sidechain Elements software
- Tether USDT freeze
- Onchain tracking and tallies
- Networks drained in the Ledger theft
- Ledger
- Bitcoin
- Ethereum
- TRON
- Coldcard
- Tether
- Tornado Cash
- Bitget
- NEAR Intents
- Hacken
- CertiK
Techniques named here
- Reseller or supply-chain compromise of hardware wallets
- Laundering of stolen funds
- Firmware build flaw generating weak seeds
- Compromise of a third-party security product
Threat actors named here
- North Korea
- Liquid attackers who styled themselves white hats
- CryptoBilis
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