Howdy, Welcome to the popular cryptocurrency blog CoinSutra. But, any possible vulnerability or security loophole within the SE, or the firmware would also likely remain hidden from the developer community, slowing down the rate of discovering vulnerabilities and providing suitable fixes. John Mills January 9, at pm. They now have over 80 employees in Paris, Vierzon, and San Francisco. Ledger also has a way to let you use your Android phone instead of computer, but it is not as simple as downloading an app from the Play Store. If you deal with cryptocurrencies, you might already be aware of the fact that hardware wallets are the best way to store them securely.