A password manager is an application that stores and manages online credentials—think of it as a type of vault that keeps passwords safe. In addition, password managers make it easier to access apps and websites since they can automatically input login details. Everyone who uses a computer or smartphone is likely familiar with switching between various applications and websites throughout the day. This can be frustrating if you don’t remember which login to use for which account, and is one of the reasons password managers have become popular. Instead of juggling multiple logins, a password manager requires that people only remember one password to gain access. In theory, this encourages the use of more complex passwords. When users only need to remember a single login, they’re less likely to use simple, easy-to-guess passwords. That said, with password manager software, it’s easier to lose—or for a hacker to gain access to—all.