Cryptocurrency hardware wallet maker Ledger raises $75M Series B led by Draper Esprit; the company sold 1M USB dongle wallets that store private keys (Marie Mawad/Bloomberg)

Marie Mawad / Bloomberg:
Cryptocurrency hardware wallet maker Ledger raises $75M Series B led by Draper Esprit; the company sold 1M USB dongle wallets that store private keys  —  Startup makes dongles to store cyptocurrency private keys  —  Sold 1 million units last year; targeting hedge funds, banks

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