Ransomware: what it is and how to soberly protect your business

Ransomware is a form of extortion software: attackers encrypt your files and demand a ransom to release them. Often they first steal a copy of your data too, to pressure you with the threat of publication. For a business, in the worst case it means days of downtime. The good news: with a handful of measures you sharply reduce both the risk and the damage.

How does ransomware get in?

Usually through familiar, everyday routes:

• a phishing email with an infected attachment or link;
• a leaked or weak password on a service reachable from outside;
• outdated software leaving a known vulnerability open.

In other words: the same basic hygiene that helps against many threats helps here too.

The measures that matter most

1. Backups following the 3-2-1 rule, at least one of which is offline or immutable. This is your most important lifeline: if you can restore, you do not have to pay. So make sure you have reliable, tested backups.
2. MFA everywhere, so a leaked password alone is not enough. See multi-factor authentication.
3. Install updates and patches promptly, especially on anything reachable from the internet.
4. Limit permissions. Not everyone needs access to everything; this limits how far an attack spreads.
5. Train your people to recognise phishing, the most common entry point. See spotting phishing.

To pay or not?

Police and security experts advise against paying: you fund crime, and there is no guarantee you get your data back. The only real negotiating position is a good backup. Those who can restore hold the stronger hand.

Make sure you have a plan

Decide in advance what you do if it happens anyway: who you call in, where your backups are, how you get back online step by step, and how you communicate to clients. An incident is stressful enough; a simple playbook saves precious time.

Need help?

We help businesses in Limburg reduce the chance of ransomware and be prepared if it goes wrong. See our cybersecurity service or book a conversation.