Est-il sûr de ne modifier ou ajouter qu'un caractère quand je change mon mot de passe ?

Guillaume N.

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Transcript

00:00I am asked to change my passwords very often.

00:02From what I know, there is no longer a site that stores this in its database.

00:05The plaintext passwords are all in hash form.

00:08My question now is, is it just varying one character in the password or adding more?

00:13is enough to secure access or does it have to be changed completely each time?

00:18THANKS.

00:18Very good question, we will answer it right away.

00:21Here we go.

00:21As you probably know, today, when you log into any customer area on the Internet,

00:26you need an identifier which can be for example your email address,

00:30and a password.

00:30When the latter is defined or modified, then it is not stored in clear text,

00:34but in the form of an ax in the database of the site on which your customer account is located.

00:38Having already detailed the subject in a previous video that you can find on many platforms,

00:42We will return to the question asked.

00:44Is simply varying one character in the password or adding one sufficient to secure access?

00:49or do you have to change it completely every time?

00:51I will use this standard site where I will choose a basic hashing algorithm,

00:55enter at the top what I would like to see chopped and see the result just below.

00:58If as password I choose for example password, all in lower case,

01:02I see that I get the following axe.

01:04Now let's change the first character from lowercase to uppercase.

01:07I observe that the axe is completely different.

01:09And if I replace the A with an at sign, I get yet another axe different from the first two.

01:15Same observation with all hashing algorithms,

01:17which proves that it is far from essential to completely change your password every time.

01:22Don't hesitate to tell me in the comments if you're more of a complete change team.

01:26or modification addition of character.

01:28And if you haven't already, subscribe.

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