We are thrilled to officially announce the Ledger Donjon CTF, which will begin next week on October 28 10:00 CEST! We encourage participants to register and find about the details on the dedicated

With Ledger Swap you can exchange coins in Ledger Live, easily and securely. Swapping coins is as easy as sending a transaction. It requires no address verification while enhancing the state of the

We mounted a 2-steps side-channel attack on the PIN verification function storage_isPinCorrect_impl of the KeepKey hardware wallet. If an attacker has a physical access to the device, the attack exposes the user PIN

Coldcard is a Bitcoin hardware wallet from Coinkite manufacturer. The platform runs on a standard STM32 microcontroller paired with a secure memory which provides secure storage of the seed behind authentication protection. Relying

Solution using Ledger Nano

Bringing a modern language and memory safety into our applications.

Speculos - an emulator for developers

In this article we will showcase one use of our tool named Rainbow: breaking a ‘whiteboxed’ AES encryption using Differential Computation Analysis.

The Ledger Donjon spends significant time and effort to assess the security of every piece of Ledger technology — along with our industry’s. During a recent security audit we uncovered vulnerabilities in a

On May 7, security researcher Christian Reitter contacted us through our Bounty program to inform us of a side-channel vulnerability which could potentially allow an attacker to spy on users of hardware wallets,

HTC EXODUS 1 phones come with an integrated hardware wallet. This wallet allows to backup its [master seed](https://bitcoin.org/en/glossary/hd-wallet-seed) by splitting it and sending it to "trusted contacts". Three trusted contacts are normally required

An attacker with a stolen device can extract the seed from the device. It takes less than 5 minutes and the necessary materials cost around 100$. This vulnerability affects Trezor One, Trezor T,