06 Aug How to Prevent Ransomware Attacks in 2025
What Is Ransomware?
Ransomware is a type of malicious software that encrypts your data and demands payment to unlock it. In South Africa, ransomware attacks are rising, with SMEs being prime targets due to limited security resources.
2025 Trends: Why Ransomware Is More Dangerous Than Ever
- More attacks target remote/hybrid businesses.
- Ransomware-as-a-Service (RaaS) is booming on the dark web.
- Unpatched software and poor user awareness are major entry points.
🧠 Fact: In 2024, over 60% of ransomware incidents in South Africa originated from phishing emails or remote desktop vulnerabilities.
7 Proven Steps to Prevent Ransomware Attacks
1. Backup Your Data Regularly
Use offline or cloud backups that are encrypted and tested often.
2. Update and Patch All Software
Ransomware often exploits known vulnerabilities in outdated systems.
3. Train Your Staff Against Phishing
Human error is the top cause of ransomware breaches.
4. Use Endpoint Detection & Response (EDR)
Deploy tools that detect suspicious activity across your network.
5. Implement Access Controls
Limit access to only what users need — and enforce MFA (multi-factor authentication).
6. Monitor Your Digital Footprint
Cybercriminals use publicly available info to target your business.
🕵️♂️ Our Digital Footprint Hunt helps you identify exposure
7. Run Simulated Attacks & Pen Tests
Regular penetration testing helps you stay ahead of real threats.
Real-World Case: A Local Ransomware Attack in South Africa
In early 2025, a Gauteng-based logistics firm was hit by ransomware. Their backups failed. They paid the ransom — and were attacked again weeks later.
In June 2024, South Africa’s National Health Laboratory Service (NHLS) reported that it was hit with a ransomware attack, which disrupted its systems, deleted backups, and stole 1.2-terabytes of data – in the middle of dealing an mpox outbreak. The breach also put sensitive medical data of millions of patients at risk. In January 2025, the South African Weather Service disclosed that its ICT-base systems were disrupted by an attack led by ransomware-as-a-service group RansomHub – who have racked up hundreds of victims, since they were first detected at the start of 2024.
This shows why defense in depth is critical.
Final Thoughts: Be Proactive, Not Reactive
Cyber threats are evolving. Waiting until you’re attacked is not an option.
Tanosec helps South African SMEs prepare, defend, and recover with real-world security solutions.
Need help protecting your business from ransomware?
Contact Tanosec today for a free risk consultation.