IT security checklist for 2026

What companies need to tackle now in a structured way

2026 is not a year for cosmetic security measures. The threat situation is professional, automated and economically motivated. Those who continue to see security as just a firewall issue will fail. This checklist focuses on measures with a real risk and business impact.

1. professionalise ransomware resilience

Defence alone is not enough.

Technical protection mechanisms are mandatory, but they cannot prevent a successful attack with absolute certainty. The decisive factor is how quickly and completely your company is able to work again after an incident.

Check and implement:

• Test backups regularly (restore, not just backup)

• Use offline and immutable backups

• Document and practise emergency and restart plans

• Define clear responsibilities in the event of an emergency

Objective: To be able to continue business operations in a controlled manner even after an attack.

2. consistently secure remote access

This is where the biggest legacy issues lie.

External access points are one of the most common entry points. At the same time, they offer the best cost/benefit leverage if they are properly secured.

Minimum standard for 2026:

• MFA for all External access (incl. VPN, cloud admin, remote maintenance)

• Switch off outdated interfaces and protocols

• No exceptions for „technical accounts“

• Regular check of external authorisations

Everything else is a calculable risk.

3. expand security as a managed service

MSSP is not a luxury, but a reality.

24/7 monitoring, threat intelligence, incident response: it's almost impossible to organise all of these things cost-effectively in-house. A Managed Security Service Provider (MSSP) closes precisely this gap.

Advantages:

• Permanent monitoring instead of reacting after the fact

• Access to specialised know-how

• Scalable costs instead of staff shortages

• Faster detection and containment of attacks

Security is thus transformed from a project into a stable operating function.

4. protection against AI-based phishing attacks

Attacks become more credible - and faster.

AI-generated emails, QR codes (quishing) and text messages (smishing) bypass traditional filters and rely on human error. Technology alone does not solve the problem.

Effective combination:

• Continuous awareness programmes (not once a year)

• Modern mail security with AI recognition

• Mobile device management for smartphones and tablets

• Clear reporting channels for suspicious messages

Humans remain the number one target - so they must be part of the defence.

IT security 2026 means:

• Resilience instead of the illusion of full protection

• Consequence for external access

• Professionalisation through managed services

• Combination of technology, processes and people

Those who implement these points in a structured manner not only reduce risks, but also increase their ability to act in an emergency.