Security Incident Response

Are you experiencing a data breach or security incident?

Let us help you stop the cyberattack, minimize the impact of the intruders and assist you with recovery. Truesec Cyber Security Incident Response Team (CSIRT) have vast experience from incident investigations, data breaches and knowledge of modern attack patterns. Don’t lose valuable minutes - contact us directly!

If you suspect a security incident, follow our 3-step-guide how to act below. 

Contact Truesec Incident Team directly!




+ 46 8 10 00 10

Cybercrime has grown into a trillion-Euro business. Companies in all industries, of all sizes are potential targets. Modern organizations rely on IT to enable production and store digital assets. A successful cyber attack can bring entire organizations to its knees. You have to act fast!

If you suspect a data breach, follow these 3 steps:


1. Contact an IT-security expert & don’t make changes in your environment

Resist the instinct to immediately turn off all computers, pull out power-cords, shut down accounts or make any changes to the environment. Consider the situation as a crime scene and wait until the IT-security expert starts an investigation. Don’t touch anything!

2. Secure backups and disconnect from your network

Secure backups so that they are not on any network. On critical systems you can disconnect the network – but do not switch them off!

3. Create a timeline of events

Create a timeline of how you experienced the incident and answer the questions what, when, how and who. Even small details can be incredibly important, when Truesec CSIRT starts to analyze what happened and acts on it.


Truesec’s method to minimize impact and immobilize threat

Maintaining a 100 % secure IT-environment is as impossible as making something 100 % secure in the physical world. Therefore, systems and IT specialists who can detect and disarm cyberattack in your environment, are as important as alarms, cameras and security guards.

As the leading cyber security firm in northern Europe and a trusted cyber advisor, Truesec has developed a state-of-the-art capacity to protect our clients. We do this by implementing early detection and rapid response to cyber threats by targeting IT infrastructure and digital assets. Our success is based on a combination of extraordinary cyber experts, the most advanced tools on the market and by investing in truly understanding the specifics of our client’s IT environments.


A security incident assignment includes:

  1. identifying threat actor activities,
  2. contain and minimize the damage,
  3. planning and executing a kick-out process
  4. and assisting recovery.

The goal is to return to a steady state as fast as possible!

In an ongoing incident, we deliver:

  • Fast and efficient analysis of the current situation

  • Malicious code identification

  • Identification of the attacker’s activities

  • Analysis of the malicious code and its functionality

  • Specially developed tools to remove the malicious code

  • Protection mechanisms that prevent further spread

  • Preservation of evidence in cases of criminal activity

  • Cleanup of trojans, rootkits, etc.

  • The possibility of tracing the source of the interference

  • Action plans to prevent future attacks


Experienced Cyber Security Incident Response Team

All our disarm engagements are managed by our experienced Incident Response Leads. Their teams all have vast experience from incidents, forensic investigations and modern attack patterns with a proven track-record. We have managed to rescue data from encrypted files, and successfully disarmed several of the known APT-groups operational today.

A customized team of experts to disarm intruders

Truesec Rapid Responders have deep knowledge about how to instantly minimize impact and immobilize threat actors. We use a proven process, perfected during an extensive number of assignments, including advanced ransomware campaigns, to cyber espionage or theft of digital assets.


Proactive Incident Response

To help your organization anticipate issues and respond effectively in case of a data breach or cyberattack, we offer tailor made solutions for your specific needs. For example response services such as a SOC solution, an emergency phone to call 24/7, all year round, but also, a predefined hourly rate for our security experts during engagements. Don’t wast any time, let’s take the next step to secure your IT!


Is it urgent?

Stay ahead of cyber criminals!

Secure your business with our cybersecurity services. Our wide selection ranges from security testing, incident response and design, to identity and access management and strategic advisory consulting.

Go to Security Services

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