Ledger Implant Attack Details Revealed by Mark Karpelès
Original title: Who’s Mass-Producing Ledger Spy Chips?
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Summary
Mark Karpelès shared details about recent Ledger implant attacks. About 320 wallets were drained following the hardware attack in Malaysia. Karpelès estimates this indicates at least 100 physical devices were used. Implants have also been reported in Singapore, Russia, and Germany. Karpelès tracked three generations of the implant. The design evolved from a hand-wired board to an orange intermediate version, and finally to a black board that drops one of the four screen connections to reduce soldering points. Karpelès suggests a single team likely improved the hardware based on feedback and that a company may be mass-producing and selling the implants to others for installation.
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Key points
- About 320 wallets were drained after a Ledger implant attack in Malaysia.
- Mark Karpelès estimates the drain indicates at least 100 physical devices were used.
- Implants were also reported in Singapore, Russia, and Germany.
- Three generations of the implant were tracked, evolving from a hand-wired board to an orange intermediate version and a black board.
- The black board version drops one of the four screen connections to reduce soldering points.
Questions
How many wallets were drained in Malaysia?
About 320 wallets were drained after the Ledger implant attack in Malaysia.
Where else have implants been reported?
Implants have also been reported in Singapore, Russia, and Germany.
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