Stop the Attack

Ransomware Defence: How Attacks Unfold and What Stops Them

Follow a ransomware attack from first access to encryption, and see which controls break the chain at each step.

11 kapitel 66 min Publicerad 8 oktober 2026
Kapitel

Utforska Ransomware-guiden

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How a modern ransomware attack unfolds

Ransomware is rarely a single event. It is a chain of steps over days or weeks, and each step is a chance to stop it.

6 min läsning Läs kapitlet

Initial access: phishing, exposed services and stolen credentials

Most attacks start with a phishing email, an unpatched remote service or credentials bought from a previous breach.

7 min läsning Läs kapitlet

Privilege escalation and lateral movement

Once inside, attackers look for admin rights and move between systems using legitimate tools.

8 min läsning Läs kapitlet

Data theft before encryption: double extortion

Attackers copy sensitive data first, so they can threaten to publish it even if you restore from backup.

4 min läsning Läs kapitlet

Hardening identity: MFA, privileged access and service accounts

Identity is the main battleground. Strong authentication and tight privileged access block many attack paths.

5 min läsning Läs kapitlet

Patching and exposure management that keeps pace

Attackers exploit known vulnerabilities within days of disclosure, especially on internet-facing systems.

6 min läsning Läs kapitlet

Endpoint detection and 24/7 monitoring

EDR tools and a team watching alerts around the clock catch attacks that slip past prevention.

7 min läsning Läs kapitlet

Backups that survive an attack

Attackers target backups first. Backups need to be isolated, immutable and tested.

8 min läsning Läs kapitlet

Network segmentation that limits the blast radius

Segmentation stops an attacker in one part of the network from reaching everything else.

4 min läsning Läs kapitlet

Testing your defences with simulated attacks

Penetration tests and attack simulations show whether your controls work against real techniques.

5 min läsning Läs kapitlet

A ransomware readiness checklist for the next quarter

A short list of actions that give the most protection in the next three months.

6 min läsning Läs kapitlet

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