Cybersecurity · 5 min
MFA and password management: the basics
Multi-factor authentication (MFA) requires, in addition to your password, a second element to log in — for example a code on your phone. Together with good password management, it is the defence with the best cost-benefit ratio: it blocks most attacks based on stolen credentials, with minimal effort.
Key points
- MFA adds a second factor on top of the password.
- It is the defence with the best cost-benefit ratio against stolen credentials.
- It should be enabled first on email, remote access and critical tools.
- A password manager makes strong, unique passwords practical.
Why passwords alone are not enough
Passwords get stolen, guessed or reused across multiple services. A single compromised password can open access to critical systems. That is why a password alone is no longer a sufficient defence: you need a second layer that renders stolen credentials useless.
MFA: the single most effective measure
With MFA, even if an attacker obtains your password, they cannot log in without the second factor. It is a simple, often free measure that blocks the vast majority of automated credential attacks. It should be enabled as a priority on email, remote access, business applications and critical tools.
- Enable MFA on email and remote access first.
- Extend it to business applications and tools with sensitive data.
- Prefer authenticator apps over codes via SMS.
Managing passwords well
Alongside MFA, good password hygiene further reduces the risk: long passwords, different for each service, managed with a password manager rather than written down or reused. A password manager makes it practical to have strong credentials without having to remember them.
FAQ
Is MFA complicated to use? +
No: it adds a quick step (a code or a confirmation) to logging in. The small effort is amply repaid by the protection it offers.
Is MFA via SMS or via app better? +
Via an authenticator app: it is more secure than SMS, which can be intercepted. SMS is still better than no second factor at all.
Does a company need a password manager? +
Yes: it makes it practical to use strong, unique passwords for each service, avoiding risky reuse and notes.
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