The cryptocurrency security system developer, which was backed by Maif Avenir at series A stage, has now raised about $84m altogether.

Ledger, a France-based cryptocurrency and blockchain security technology provider backed by insurance firm Maif, raised $75m today in a series B round led by venture capital firm Draper Esprit.

The oversubscribed round included three more parts of the Draper network related to venture capitalist Tim Draper – Draper Associates, Draper Dragon and Boost VC – along with FirstMark Capital, Cathay Innovation, Korelya Capital, CapHorn Invest, GDTRE and Digital Currency Group.

Founded in 2014, Ledger has sold more than 1 million of…