How Password Managers Work - Computerphile?

A password manager is like a super-smart lockbox that remembers all your secrets so you don’t have to.

Imagine you have a bunch of toys, each one needs a different key to open it. That’s like having a separate password for every website, app, and game. It’s hard to remember them all!

Now imagine you have one special key that opens all your toy boxes, and it even remembers which key goes with which box. That’s what a password manager does. You just need to remember one master password, and it takes care of the rest.

When you use a password manager, you type in your master password, and poof, it shows you all the passwords you saved. It can even fill them in for you when you log into websites!

Some password managers also create strong new passwords for you, like how a grown-up might pick out the perfect toy for you.

If you lose your phone, you just need to type in your master password on another device, and all your secrets come back to you. No more guessing games or sticky notes under the bed!