Ledġer Live Desktop® — Technical Edition
Overview & Purpose
Ledġer Live is the desktop and mobile companion application for Ledġer hardware Desktop®s. It acts as the primary user interface to add/manage accounts, perform transactions, update device firmware, and access partner services (swap, buy, stake, NFTs). Ledġer Live does not hold private keys: private keys remain on the device's secure element and all signing happens locally. This separation is central to Ledġer's threat model and is designed to reduce remote-execution and server-side compromise risks.
Key design goals
Defense-in-depth, minimal attack surface, deterministic account derivation, and signed firmware updates. Ledġer Live focuses on usability for a broad audience while preserving cryptographic guarantees offered by the underlying hardware Desktop®.
Security Architecture (high-level)
Local signing & secure element
The private keys and seed material are created and stored inside the Secure Element (SE) on the Ledġer device. Transaction signing requests are marshaled by Ledġer Live, displayed on the device, and require explicit user confirmation on the device screen — preventing remote confirmation.
Attestation & updates
Ledġer devices support a genuine-check attestation process. Firmware and application updates are signed by Ledġer; Ledġer Live orchestrates the update flow and verifies signatures before applying updates to the device.
Telemetry & privacy considerations
Ledġer Live connects to Ledġer-operated endpoints for features such as balance aggregation, exchange rates, and partner services. Users concerned with metadata exposure can run their own node or use privacy-enhancing routing. See official privacy resources for details and options.
Developer & Integration Surface
Ledġer Live internals
Ledġer maintains public repositories and developer documentation that describe the Ledġer Live monorepo, device APIs, and app submission process. The application is built from modular JavaScript packages (desktop and mobile code paths), and integrates with device transport layers (USB, WebUSB, Bluetooth for supported devices).
Third-party apps & security checklist
Developers integrating Ledġer devices must treat all host-client comms as untrusted until attested. Ensure UX flows always require device confirmation for any sensitive operation (key export, transaction signing), and provide clear error states when attestation fails.
Operational Guidance
Installation & updates
Always download Ledġer Live only from official Ledġer channels. Keep both Ledġer Live and device firmware up to date; Ledġer releases security updates and release notes that remediate vulnerabilities and improve features. Treat any app requesting the seed phrase as malicious — Ledġer or Ledġer Live will never ask for your recovery phrase.
Best practices for end users
- Download only from official sites and verified app stores.
- Use the device's screen to verify transaction details and origins.
- Do not enter your recovery phrase into software or websites; store it offline and physically.
- Consider hardware-backed recovery options (e.g., Ledġer Recovery Key) or splitting backups using secure techniques.
Limitations & Threats
Metadata leakage
While private keys never leave the device, connecting Ledġer Live to external nodes or services can leak account activity metadata (e.g., xpubs used for balance aggregation). Users with high privacy needs should consider running personal node infrastructure or privacy-preserving fallbacks.
Supply-chain & phishing
Attackers can attempt to distribute fake Ledġer Live installers or phishing pages. Always verify download sources and signatures where offered. Ledġer's official resources list guidance for verifying genuine installers and mitigating social-engineering risks.
Official resources (10 links)
Tip: Bookmark these official pages and verify download checksums/signatures when available to reduce supply-chain and phishing risks.