Cybersecurity · 6 min
Ransomware: how to protect your company
Ransomware is a type of cyberattack that encrypts a company's data and demands a ransom to make it accessible again. It is one of the costliest threats for businesses, but also one of the most preventable: with a few fundamental measures you greatly reduce the likelihood of suffering one and, above all, you turn a potential disaster into a manageable incident.
Key points
- Ransomware encrypts data and demands a ransom, but it is largely preventable.
- It gets in mostly via phishing, weak credentials and outdated software.
- Isolated and tested backups let you restore without paying.
- Technical prevention, training and a response plan reduce the impact.
How ransomware gets in
Most ransomware attacks exploit well-known entry points: phishing emails with malicious attachments or links, stolen credentials, outdated software and poorly protected remote access. Knowing these vectors is the first step to closing them.
- Phishing: emails that trick you into opening attachments or links.
- Stolen or weak credentials, without strong authentication.
- Outdated software and systems.
- Exposed and poorly protected remote access.
The most important defence: backups
If an attack succeeds, what makes the difference between a disaster and an inconvenience is your backups. Regular backups, isolated from the network (offline or immutable) and tested, let you restore data without paying any ransom. A backup that ransomware can reach, however, can be encrypted too: isolation is essential.
Prevention and a response plan
Prevention combines technical and human measures: multi-factor authentication, constant updates, anti-phishing training and limiting privileges. This should be paired with a simple response plan: what to do, who to alert and how to isolate systems if an attack is detected, so you can react quickly and with a clear head.
FAQ
Is it worth paying the ransom? +
No: paying does not guarantee data recovery, fuels the phenomenon and can expose you to further attacks. The best defence is isolated, tested backups that make payment pointless.
Is a small company a target for ransomware? +
Yes. Many attacks are automated and hit SMEs precisely because they are often less protected. Size is no shield.
What is the single most effective measure? +
Isolated, tested backups: they make an attack manageable. Combined with MFA and anti-phishing training, they drastically reduce the risk.
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