Most have relatively easy configuration, and are free. With bitcoin, the integrity of the transactions is maintained by a distributed and open network, owned by no-one. Some large investors keep their hardware wallets in secure locations such as bank vaults. Development of the technology got a significant boost with the adoption of SegWit on the bitcoin and litecoin networks. You can find more information on some of the wallets out there, as well as tips on how to use them, here and here. They are a pro internet freedom company used to purchase domain names and is a favorite in the cryptocurrency community for their willingness to accept bitcoin and fight for freedom. After ripping to record highs last week — following a disappointing false start — bitcoin has continued to rally.