Ledger Reviews Sales Policies After $93M Supply Chain Crypto Hack

Ledger Investigates Supply Chain Tampering After $93 Million Crypto Wallet Drain

Ledger is reviewing its global sales policies and device distribution channels after physical tampering along its supply chain led to an estimated $93 million in cryptocurrency theft from user wallets, according to a Bloomberg report on October 13.

The Tech TL;DR:

• Rogue hardware implants featuring cellular LTE modules were manually installed into brand-new hardware wallets within the supply chain.
• The rogue chips intercepted and transmitted unencrypted 24-word recovery seed phrases directly to external command servers during initial device setup.
• Ledger has ordered reseller CryptoBilis to halt sales and is currently reviewing all direct-to-consumer and third-party reseller controls.

Simultaneous Wallet Drains Across Multiple Blockchains

The security incident came to light on Friday, October 9, when hundreds of hardware wallets drained simultaneously across the Bitcoin, Ethereum, and Tron networks. The synchronized activity triggered immediate alerts across social media platforms and blockchain security monitoring networks as victims came forward to report unexpected losses. Early triage revealed that nearly all of the compromised signers had been purchased through CryptoBilis, a third-party hardware reseller serving Malaysia and Southeast Asia. Ledger promptly ordered the vendor to immediately halt all ongoing sales and shipments.

Hardware Implant Bypasses Standard Verification Firmware

Following a deeper technical assessment, Ledger announced on October 10 that investigators had discovered an unauthorized physical hardware modification tucked inside an affected device. The attackers manually implanted a rogue chip equipped with a cellular LTE module onto the internal architecture of brand-new units before final delivery to consumers. When an end-user generates or verifies their 24-word recovery seed phrase on the device’s OLED screen during initial configuration, the hidden chip records the raw display output or captures the underlying hardware data lines carrying the plaintext words. The integrated cellular component then quietly streams the unencrypted recovery phrase over standard cellular frequencies directly to external command servers, handing attackers complete remote access to clone the private keys and empty the associated crypto balances.

This physical architecture bypasses Ledger’s automated “Genuine Check” software utility because the implant sits entirely outside the secure microchip running the official firmware stack.

Leadership Confirms Supply Chain and Anti-Tampering Reviews

Responding to the vector discovery, Ledger CTO Charles Guillemet confirmed in a social media post that the company is actively reviewing its anti-tampering protections across the hardware lineup. Guillemet instructed users holding potentially compromised signers to contact Ledger support for explicit shipping instructions to send the hardware back for laboratory examination. He also advised users who prefer to physically open their devices to verify internal components to carefully follow the company’s published guidelines for safe teardowns.

In a separate public statement, Ledger CEO Pascal Gauthier acknowledged the broader industry exposure, stating, “Physical supply chain tampering is a risk for the whole industry. We are reviewing the controls that apply to our direct sales and to resellers, and we will share what we can.” Gauthier confirmed that the company is currently auditing its chain-of-custody protocols and tamper-detection safeguards, while extending an invitation to independent security researchers and industry vendors to assist in evaluating those practices.

The article mentions that Ledger is examining all vendor requirements, instructing distributors to enforce tighter tracking, source only through approved channels, and strictly prohibit the restocking or resale of returned customer units.

Remediation Guidance for Vulnerable Hardware Owners

Ledger maintains that its internal corporate infrastructure, firmware code, and direct-to-consumer sales channels through the official online store remain entirely uncompromised.

# Recommended initial triage for third-party hardware wallet owners:
# 1. Isolate the compromised signer from any network connections.
# 2. Generate a fresh, air-gapped 24-word recovery seed on a verified device.
# 3. Transfer digital assets to the newly secured destination address.
# 4. Contact official support channels for hardware return instructions.

Disclaimer: The technical analyses and security protocols detailed in this article are for informational purposes only.