Small and medium-sized companies rank among the favourite targets of cyberattacks. They usually have fewer defences than large groups, yet they hold valuable customer, banking and commercial data. This SME cybersecurity guide therefore covers the threats you need to know and the seven essential measures to protect your Belgian company without an oversized budget.
Why SME cybersecurity concerns your company too
Many managers believe their activity holds no interest for hackers. However, most attacks run automatically: bots test thousands of email addresses and websites, whatever their size. Moreover, the European NIS2 directive, now part of Belgian law, raises security requirements in many sectors. As a result, your larger clients may ask for proof of solid SME cybersecurity before signing a contract.
The most common threats
Good SME cybersecurity starts with knowing what you face. Three threats clearly stand out.
Phishing
Fraudulent emails remain the most widespread attack method. Criminals impersonate your suppliers, your bank or your partners to steal credentials or trigger a payment. In Belgium, also forward any suspicious message to suspect@safeonweb.be, the reporting address of the CCB, the federal authority in charge. When in doubt, check the sender's real address and call them back on a known number before making any payment.
Ransomware
This malicious software encrypts your files and then demands a ransom to unlock them. Without a clean backup, your activity can stop for several days. Paying, moreover, does not guarantee that you will recover your data.
Website vulnerabilities
Outdated websites, vulnerable plugins and weak passwords all open doors for attackers. In addition, a hacked website can spread malware to your visitors and damage your reputation.
7 essential SME cybersecurity measures
1. Train your staff
Training forms the foundation of any SME cybersecurity plan. So regularly show your teams how to spot phishing, manage passwords and report an incident without fear. A short session every quarter works better than a long course that everyone forgets.
2. Enable multi-factor authentication (MFA)
Turn on MFA for all business accounts: email, cloud, CRM and online banking. Indeed, it remains the most effective protection against credential theft, and the most cost-effective SME cybersecurity measure.
3. Back up with the 3-2-1 rule
Keep three copies of your data, on two different media, with one copy off-site. Also test restores regularly, because an untested backup remains a mere promise.
4. Update systematically
Install updates for operating systems, browsers, software and plugins as soon as they become available. Thus, security patches close the holes that attackers exploit.
5. Enforce a password policy
Require long passwords (12 characters or more) that differ for every service. A professional password manager such as 1Password or Bitwarden then makes daily use easy.
6. Comply with the GDPR
The GDPR provides a useful framework for data protection: a record of processing activities, limited access rights and contracts with your processors. Furthermore, if a personal data breach occurs, you must notify the Data Protection Authority within the legal deadline.
7. Prepare an incident response plan
Write a plan that sets out who does what during an attack: isolate devices, alert your IT provider, inform customers and the authorities. Many companies overlook this part of SME cybersecurity, yet every minute counts to limit the damage.
Secure devices and remote work
Laptops and smartphones regularly leave the office, which multiplies the risks. Therefore, enable disk encryption and automatic screen locking on every device. Also limit administrator rights to a few people, so that one careless click cannot install malware across the whole network.
- Avoid public Wi-Fi networks without a secure connection, for example a company VPN.
- Keep personal and professional use clearly separate, especially on phones.
- Maintain an up-to-date list of devices, and revoke access immediately when an employee leaves.
Where to start on a limited budget
Start with the measures that cost little: MFA, automatic updates and backups. Then list your accounts, devices and sensitive data. The CCB also publishes free advice on Safeonweb, as well as the CyberFundamentals framework, so that you can structure your SME cybersecurity approach step by step. Finally, ask your web and IT providers which of these measures they already apply on your behalf.
Conclusion: an investment rather than a cost
SME cybersecurity is an investment, not an expense. Espero-Soft carries out security audits, trains your teams and keeps your websites and applications up to date. Our website subscription also includes hosting, maintenance and support. Contact us to plan a security audit tailored to your company.
