Why it matters
Computer security is not only for experts. Most daily problems come from poorly protected accounts, reused passwords, suspicious links or missing backups.
I prefer simple security that people actually apply to perfect security that nobody can maintain.
My priorities
Use a password manager
One unique password per service changes everything. A manager lets you create long passwords without memorizing them.
Enable two-factor authentication
When possible, I enable two-factor authentication, especially for email, bank accounts, social networks, GitHub and cloud services. Email comes first because it is often used to reset other accounts.
Beware of artificial urgency
Many attacks push you to act quickly: blocked payment, parcel, invoice, suspended account. My reflex is to slow down, check the address and go through the official website rather than the received link.
Practical checklist
- Update your operating system and browser.
- Enable two-factor authentication on your main email.
- Use a password manager.
- Do not reuse the same password across services.
- Back up important files on at least two supports.
- Check links before entering credentials.
- Do not plug in an unknown USB key.
Student mini-checklist
Before an important submission, save your work in the cloud, on your computer and export a PDF version. It is not glamorous, but it is the kind of habit that saves a week.