third-party-vendor

Ledger SAS is a Paris-based hardware cryptocurrency wallet manufacturer founded in 2014, producing the Nano S and Nano X devices used by millions worldwide. Despite its status as a legitimate and established company, Ledger has been involved in two major security incidents: a 2020 customer database breach exposing over 1 million email addresses and 272,000 physical addresses, and a December 2023 supply chain attack on its @ledgerhq/connect-kit npm package that drained approximately $600,000–$850,000 from users of multiple DeFi protocols via the Angel Drainer malware-as-a-service. A third-party data breach via payment processor Global-e was disclosed in January 2026.

Transak is a fiat-to-crypto on-ramp infrastructure provider founded in 2019 and serving over 8 million users across 160+ countries, with integrations into major platforms including MetaMask, Phantom, and Uniswap. In October 2024, a phishing attack on an employee's laptop led to unauthorized access to a third-party KYC vendor's dashboard, exposing the personal identity documents of approximately 92,554 users globally, including names, dates of birth, government-issued IDs, and selfie photos. The breach resulted in a $601,000 class action settlement covering U.S.-based affected users, and the Stormous ransomware group claimed responsibility, alleging extraction of over 300GB of data.