Too many internet users still aren’t doing enough to protect their online accounts and data, choosing instead to use passwords that are too easy to hack.

It’s essential to choose complex passwords and renew them regularly. Here’s a quick reminder of some basics.

• Forget using names and birthdates

Experts recommended not using passwords that are too simple, like your first name or your child’s name, the name of your pet, your date of birth, or sequences of numbers or letters such as “123456” or “qwerty”, which are thought to be the world’s most-used passwords.

Another bad habit is reusing the same password for several services, or simply changing one character. The first thing a hacker who has just stolen your password will do is try their luck on several other platforms.

It is also advisable to change your passwords every three months.

• Use a mnemonic

The best solution for creating and remembering a complex password – composed of numbers, letters, and even special characters – is to use a mnemonic.

This involves using the first letters of each word in a sentence or a song title, for example. Remember to repeat the operation for each new online service, as each password must be unique.

Whenever possible, you should also use two-factor authentication, especially for your most important accounts (email, social networks, and so on). This means accessing your account requires an additional validation, often by SMS, email or a dedicated application.

This technique also allows users to be notified in the event of suspicious login attempts.

Also remember that encrypting your data is essential if you don’t want hackers to get their hands on it.