If you do one thing to improve your security, make it this. The overwhelming majority of breaches begin with a stolen, guessed, or reused password — and multi-factor authentication (MFA) neutralises almost all of them. It is the cheapest, highest-impact security control available to any business.
Why passwords alone fail
Passwords get phished, leaked in breaches at other companies, reused across accounts, and guessed. Once an attacker has a valid password, a password-only system lets them straight in. This is the most common single point of failure in business cybersecurity.
How MFA changes the game
MFA requires a second proof of identity — typically a code or prompt on a device you control — in addition to the password. So even if an attacker steals the password, they still cannot get in without the second factor. That one change blocks the vast majority of credential-based attacks. Deploy it via identity and access management.
Good password practice still matters
- Use a password manager — so every account has a strong, unique password nobody has to remember.
- Never reuse passwords — one breach should not unlock everything.
- Prioritise length — a long passphrase beats a short, complex one.
- Protect privileged accounts hardest — admins are the highest-value target.
Not sure where MFA is and is not enforced across your business? A security assessment will map it, and the Security Starter package closes the gaps.
Topics
- multi-factor authentication
- password security
- how to secure business network
- endpoint security best practices
