10 Cybersecurity Best Practices Every Small Business Should Follow

Small businesses are attractive targets because attackers expect thinner defenses. The good news is that most common attacks can be stopped with a handful of well-run basics. These ten practices give you a strong foundation without an enterprise budget.

1. Turn on multi-factor authentication everywhere

Require MFA for email, Microsoft 365 or Google Workspace, banking, remote access and every administrator account. It stops most attacks that rely on a stolen password.

2. Keep systems and software updated

Enable automatic updates for operating systems, browsers and business applications, and replace devices that no longer receive security updates.

3. Use a password manager

Long, unique passwords for every account keep one breach from unlocking the rest. A business password manager makes this practical for the whole team.

4. Protect every endpoint

Run modern endpoint protection on all laptops, desktops and servers, and make sure someone is responsible for reviewing its alerts.

5. Back up, and test your restores

Keep three copies of important data, on two types of storage, with one copy offline or offsite. Test a restore regularly so you know it works when you need it.

6. Secure your email

Configure SPF, DKIM and DMARC for your domain, filter phishing and malicious attachments, and flag messages from external senders.

7. Limit administrator access

Give people only the access their role needs. Use separate accounts for administrative work, and remove access promptly when someone leaves.

8. Train your team to spot phishing

Short, regular training and simulated phishing exercises help people recognize suspicious messages and report them quickly.

9. Secure your network and Wi-Fi

Change default passwords, keep firewall firmware updated, use WPA3 or WPA2 with a strong passphrase and put guests on a separate network.

10. Have an incident response plan

Write down who to call, how to isolate affected systems and how to communicate if something goes wrong. A one-page plan beats improvising under pressure.

Where to start

If this list feels long, begin with MFA, updates and backups. They address the most common causes of serious incidents. A security assessment can then show where your remaining gaps are.