Remember, if you are using a trusted device, you need to revoke access if it is ever lost or stolen. Both password length and quality are important to prevent a hacker from decrypting your password data before you change your passwords. You still need to encrypt your data with a good master password. Now remember the Yubikey and a good policy only prevent access to the password data. This is good in situations such as work computers where you may not trust the help desk people. This works great if you trust the device you are working from, but if you do not trust the devices, you can require that the Yubikey is always necessary. When a device is trusted, you do not need to use the Yubikey, so you can leave it at home. Each of the mobile devices can be trusted based on a UUID, while each browser can be trusted based on a generated cookie. Using Yubikey prevents anonymous access to the website, but if you work from a phone, a tablet and a laptop daily, it can be more convenient to trust devices. Yubikey can also be used for other software and services There is a single button on top of the key, and when pressed, it will type out the 44 characters necessary for authentication in Last Pass. This makes it usable on virtually everything, including Linux Desktops/Laptops in my case. When the Yubikey is plugged into your laptop, computer, or tablet, it is recognized as a USB keyboard. Second, you must use the Yubikey to enter a 44 character string into a second box which you are automatically prompted for. First you need your master password which is also used to encrypt your data. When Last Pass is configured to use Yubikey, it will not allow you to access the website if you do not have two factors of authentication. Yubikey and a good trust policy helps prevent the hackers from getting access to your password data. Second, they must decrypt your passwords before you change them all. First, the hacker must gain access to your password data.
When you store your passwords in an encrypted data store, also called a blob, whether it is online or not, there are two factors which need satisfied for a hacker to get your passwords. There are several main factors in maintaining password security.
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