how strong is my password tool uses a variety of techniques to check how strong a password is. It uses common password dictionaries, regular dictionaries, first name, and last name dictionaries, and others. It also performs substitution attacks on these common words and names, replacing letters with numbers and symbols – for example, it’ll replace A’s with 4’s and @’s, E’s with 3’s, I’s with 1’s and !’s, and many more. Substitution is very typical by people who think they’re making passwords stronger – hackers know this though so it’s one of the first things hacking software uses to crack a password
How to check whether your password is secure or not
Why Is Password Security Important?
Not having secure passwords has its consequences, which include but are not limited to:
The passwords you type never leave your browser and we don’t store them (You can disconnect your internet connection and then try it if you wish)
All the checking is done on the page you’re on, not on our servers
Even if the password was sent to us, we wouldn’t actually know who you were anyway – so couldn’t match it up to any usernames or any websites you may visit
We’re in the business of making people more secure online and the last thing we want to see is passwords being transmitted across the internet insecurely.