Ledger CEO says attack was an ‘unfortunate isolated incident’

The attack happened after a former employee was phished, giving the attacker access to Ledger’s package manager


fotaro100/Shutterstock and Adobe modified by Blockworks


Ledger CEO Pascal Gauthier addressed the “supply chain attack” on its Ledger ConnectKit in a post on Thursday.

“The standard practice at Ledger is that no single person can deploy code without review by multiple parties. We have strong access controls, internal reviews and multi-signature code when it comes to most parts of our development. This is the case in 99% of our internal systems. Any employee who leaves the company has their access revoked from every Ledger system,” Gauthier said

However, that was not the case on Thursday morning when a former employee was the subject of a phishing attack, giving the hacker an open door to Ledger’s package manager. It’s still unclear how the employee had maintained access to the system. Ledger did not immediately return a request for comment asking for clarification. 

Read more: Ledger says attacker conducted phishing attack on former employee

“This was an unfortunate isolated incident,” Gauthier continued. “It is a reminder that security is not static, and Ledger must continuously improve our security systems and processes. In this area, Ledger will implement stronger security controls, connecting our build pipeline that implements strict software supply chain security to the NPM distribution channel.”

Gauthier also said that Ledger would increase security around dapps that enable browser-based signing. Throughout communications on its X account on Thursday, Ledger’s official account promoted clear-signing transactions. 

According to Ledger’s site, “with Transparent and Clear-signing, you are given a transformed version of the original data,” making it easier for the user to understand what they’re signing.

The incident was first reported Thursday morning, with decentralized exchange SushiSwap raising a red flag. The exchange took its front-end web app offline after the warnings, and told users to refrain from engaging with unexpected “Connect Wallet” pop-ups. 

Revoke.cash, which also took its front-end offline, was also impacted according to cybersecurity firm BlockAid.

Soon after, Ledger said that it had deployed the genuine ConnectKit and worked with WalletConnect to take down the malicious code “within 40 minutes of discovery.” According to a timeline from the firm earlier Thursday, the exploit was active for roughly 5 hours.

Tether CEO Paolo Ardoino also posted on X that the attacker’s address was frozen.

“Ledger has engaged with authorities and is doing all we can to help as this investigation unfolds. Ledger will support affected users in helping to find this bad actor, bring them to justice, track the funds and work with law enforcement to help recover stolen assets from the hacker,” Gauthier said.

Start your day with top crypto insights from David Canellis and Katherine Ross. Subscribe to the Empire newsletter.

The Lightspeed newsletter is all things Solana, in your inbox, every day. Subscribe to daily Solana news from Jack Kubinec and Jeff Albus.


Upcoming Events

Salt Lake City, UT

MON - TUES, OCT. 7 - 8, 2023

Blockworks and Bankless in collaboration with buidlbox are excited to announce the second installment of the Permissionless Hackathon – taking place October 7-8 in Salt Lake City, Utah. We’ve partnered with buidlbox to bring together the brightest minds in crypto for […]

Salt Lake City, UT

WED - FRI, OCTOBER 9 - 11, 2024

Pack your bags, anon — we’re heading west! Join us in the beautiful Salt Lake City for the third installment of Permissionless. Come for the alpha, stay for the fresh air. Permissionless III promises unforgettable panels, killer networking opportunities, and mountains […]

recent research

Research Report Cover Vertex.jpg


The proliferation of new perp DEXs has led to fragmented liquidity across various DEXs and chains. Vertex, known for its vertically-integrated DEX that includes spot, perpetual, and integrated money markets, is now tackling cross-chain liquidity fragmentation through horizontal integration with the launch of new Edge instances. Vertex's integrated offerings and cross-margined account structure amplify the benefits of new instances: native cross-chain spot trading, optimized cross-chain basis trading, consistent interest rates, reduced bridging friction, and more.


Partnering with EtherFi and Angle, the fully on-chain perp DEX features bespoke collateral



Gavin Wood introduced the next evolutionary step for the Polkadot network: the Join-Accumulate Machine, or JAM


The side events were the places to be at Consensus 2024, according to attendees


Also, who’s come out swinging in the spot ether ETF fee war — and who could undercut them


I know it is not in their nature, but US regulators could learn a lot by researching the digital asset frameworks that overseas regulators have already gotten right


Also, the ETF hype train can count out at least one member