A ransomware attack does not discriminate: it hits where defences are weakest. SMEs in Ireland are increasingly targeted — precisely because they are perceived as less protected than large enterprises.
Ransomware protection for businesses is no longer a luxury reserved for large corporations. Across Ireland and Dublin, ransomware attacks on SMEs have surged in recent years: data encryption, ransom demands, total business shutdown. Here is what ransomware actually is — and how to protect your business concretely.
What is Ransomware?
Ransomware (ransom malware) is a type of cyberattack where a hacker exploits a vulnerability in your network infrastructure to implant malicious software. This software encrypts all your data and demands a ransom in exchange for the decryption key.
These attacks are increasingly frequent. A recent high-profile example: a US oil pipeline was targeted and the attackers demanded a ransom of $4.4 million after encrypting critical data.
Ransomware typically enters through: phishing emails with malicious attachments, unpatched software vulnerabilities, exposed remote desktop connections, or compromised credentials.
80%
of businesses that lose their data go bankrupt within 12 months
$4.4M
ransom demanded in the Colonial Pipeline attack
+300%
increase in ransomware attacks on SMEs over recent years
The NAS System: Your First Line of Defence
A NAS (Network Attached Storage) system allows you to back up all your files on dedicated hard drives. It can be used for personal or professional purposes. Some NAS systems also offer cloud synchronisation across all your devices.
The key advantage of a NAS with a private cloud is that you control who can access your data — unlike public cloud services. You decide who has access and what permissions each user holds.
You can also share files with specific people via a simple link, without exposing your entire infrastructure.
How to React During an Attack
To limit the damage caused by a ransomware attack, speed is critical. Here are the immediate steps:
- Disconnect from the network — disable Wi-Fi or unplug the ethernet cable to stop data exchange with the attacker
- Do not pay the ransom — payment does not guarantee data recovery
- Contact your IT provider — immediately alert your support team
- Deep clean your machine — thoroughly scan and remove all malware
- Restore from your NAS backup — once the machine is clean, restore your data
Prevention Checklist: Protect Your Business Before an Attack
Some NAS systems (such as Synology) include a powerful built-in antivirus (Security Advisor) that provides enhanced protection. Combining regular backups with antivirus protection is your best defence against ransomware. Beyond that, follow this checklist:
- Test your backups regularly — a backup you have never restored is not a backup
- Keep operating systems and software up to date — outdated systems are the primary attack vector
- Install a reputable antivirus / EDR solution — protect every endpoint
- Never use remote access without a VPN — avoid public Wi-Fi for business access
- Train your staff on phishing — never open suspicious attachments from unknown senders
- Segment your network — limit the spread of an infection if one device is compromised
- Enable multi-factor authentication (MFA) — on all critical accounts and remote access
Let’s discuss your situation.
30 minutes, no obligation.
Let’s take a look together at what it would take to ease your IT workload. No sales pitch. Just an honest assessment of the situation.
Your IT architect. Your trusted partner.