Lock is one of the shortest and most universal security words in English. It describes a padlock, a door and a vault, and in bitcoin it also has a technical sense: coins can be locked by a script until a condition or a date is met. Crypto and coin in front of it keep the subject unmistakable. On .com, the global commercial ending, the name reads like a consumer product brand that could sit on a box in any electronics shop.
In the Wallet & Storage collection the name leans towards products. It suits a hardware signing device, a steel seed-backup plate, a time-lock savings app, or an inheritance service that releases coins to heirs after a set period. A security consultancy could also use it as a memorable front for setting up locked, multi-key storage for private clients.