For most use cases, though, none of these are of serious concern. Of course, snopf isn’t perfectly secure, and the project’s creator goes into detail on the project’s page about some of the potential vulnerabilities. It does this by emulating a keyboard, keeping the password information off of the computer’s clipboard. Password requests are made by the computer to the USB device, but the user must push a button on the snopf in order to send the password to the computer. Passwords are created by the USB device itself using a 128-bit key to generate the passwords, which are physically detached from the computer.

This password keeper, called “snopf”, is a USB device with an ATtiny85 which adds a layer of separation to password keeping that increases security substantially. For those with increased security concerns, though, you may want to implement a USB password keeper like this one based on an ATtiny. While memorization is an option in theory, in practice a lot of people make use of a password manager like Lastpass or KeePass. From there, one’s method of keeping track of multiple passwords can vary considerably. The most important rule of password use, especially when used for online logins, is to avoid reusing passwords.

Usb stick password manager