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IT security

What is cybersecurity?

Cybersecurity is about protecting data, systems and employees against attacks. Get an overview of threats, key concepts and the most important measures.

In short

Cybersecurity is the combined effort to protect a company's data, systems, networks and employees against digital attacks: from phishing emails and ransomware to targeted intrusions into the infrastructure.

It concerns all Danish businesses regardless of size, because today's attacks are automated and hit broadly: attackers are not looking for specific victims, but for open doors. Three points are central. First, people are the most frequent point of attack, so employee training is just as important as technology. Second, basic measures such as multi-factor authentication, updated systems and tested backups stop the vast majority of attacks.

Third, cybersecurity is an ongoing process, not a one-off project, because the threat landscape is constantly changing and because new systems and ways of working continually open new attack surfaces. MI Support IT helps Danish businesses across the whole area, from security reviews and technical controls to awareness training and continuous threat monitoring.

Back to the glossary

What is cybersecurity?

Cybersecurity is the protection of data, systems, networks and people against digital attacks. It covers everything from technical controls such as firewalls, MFA and encryption to processes, contingency planning and employee training. The goal is threefold: that data remains confidential, that it is not altered without authorisation, and that systems are available when the business needs them. The Danish Centre for Cyber Security regularly publishes threat assessments showing that the threat against Danish businesses is persistently high, especially from cybercrime.

What is the difference between cybersecurity and IT security?

In everyday speech the terms are used interchangeably, and in practice you can safely do the same. To be precise: IT security is about protecting the company's IT systems and data in general, including against non-digital events such as power failures, water damage or theft of equipment. Cybersecurity focuses on threats arriving via networks and the internet: attacks, intrusions and misuse from outside and inside. Cybersecurity is thus a subset of IT security, but today it is the subset that matters most, because almost all serious incidents start digitally.

The 5 biggest cyber threats to Danish businesses

  1. Phishing: Fake emails and messages that trick employees into giving up login credentials or making payments. The vast majority of attacks start here.
  2. Ransomware: Criminals encrypt your data and demand a ransom, often combined with a threat to leak data.
  3. CEO fraud: Fraudsters impersonate the managing director and pressure the finance team into urgent transfers. Pure manipulation, no malware.
  4. Exploitation of vulnerabilities: Unpatched servers, VPN appliances and systems exposed to the internet are scanned and attacked automatically.
  5. Insider risk: Employees who accidentally share data incorrectly, or in rarer cases deliberately abuse their access.

Common to them all: basic hygiene (MFA, patching, backup and a principle-based access model such as zero trust) removes the majority of the risk.

How to check your company's security level

Start by asking yourselves five questions: Do all accounts have MFA, including administrators? Do you know which systems are exposed to the internet? Has your backup been tested with an actual restore? Do you have a written plan for what happens in the first 24 hours after a cyber attack? And have your employees practised spotting a phishing email under controlled conditions?

If you cannot answer a clear yes to all five, a structured security review is the natural next step: it uncovers the gaps and prioritises the effort before the attackers do it for you. A penetration test can then put the defences to the test in practice.

How MI Support IT helps

We treat cybersecurity as an ongoing operational task: regular security reviews, hardening of the Microsoft environment, monitoring, security awareness training for employees and preparedness through an IT contingency plan, all gathered under IT security. Contact us if you want an honest picture of where your business stands.

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