To be secure, a password should be unique to every system. You should not use the same password as you use in another systems. This is because if, for example, a social media platform has a breach and passwords are leaked, an attacker would most probably try the same passwords on other systems immediately.
We cannot know if you use the same password twice. What we can know is if the password that you have selected is strong enough. We determine the password strength by looking at the length and how the password is built up.
- The length must be at least 12 characters
- It cannot only consist of common words or keyboard sequences (like "qwerty" or "12345")
- It cannot be a common word modified in a simple way (like capitalization or added numbers)
- It cannot be a common password found in lists of passwords from breaches
As you can see, we do not require a certain number of characters in lower case, upper case or similar. We recommend that you choose a (long) combination of words that together is hard to guess, like "mybluesnailateanelefantforlunch", but (quite) easy to remember.
Or, even better, use a password manager to keep track of all your unique and randomly generated passwords!