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How cyber security keeps businesses operational

Security should enable, not hinder

Cyber security is often seen as a specialist technical subject or a necessary evil. In fact, it now determines whether companies can remain operational in the long term. Why security has long been a management responsibility, and why it must support the business rather than hold it back.

Thomas Tschersich in the command centre with the large display wall at Deutsche Telekom’s Security Operation Centre

In brief

  • Nowadays, cyber security is far more than just an IT issue.
  • Security is increasingly a determining factor in companies’ ability to operate.
  • Clear priorities, swift decisions and consistent implementation are crucial.
  • Good cyber security does not prevent change - it enables it.

Cyber security is a top priority

Cyberattacks are now part of everyday business life. At the same time, the cloud, artificial intelligence and increasingly interconnected business processes are creating new opportunities for growth and innovation. Many companies respond to this primarily with new security solutions. Yet this is often where a misunderstanding lies.
Cyber security does not begin with technology. It begins with the question of how companies can remain capable of acting effectively in the long term, even under changing conditions. That is why it is no longer sufficient today to view security solely as a task for IT. It has long been part of responsible corporate governance.

No matter of perfection

When people talk about cyber security, the impression is often given that companies must have every risk completely under control. In practice, this is neither realistic nor necessary.
What matters far more is consistently reducing known risks, continuously refining security measures and implementing changes swiftly. It is not perfection that makes companies secure, but the ability to act effectively. Speed, in particular, is becoming increasingly important. Today, attackers often need only a few hours to exploit known vulnerabilities. Companies can therefore increasingly rarely afford to delay taking the necessary measures.

Security must enable business

The role of cyber security is not to prevent innovation or slow down new projects. On the contrary: robust security is the very foundation for the responsible use of new technologies.
When security measures are clear, effective and integrated into existing processes, they do not create any additional obstacles. They provide companies with the stability they need to implement changes safely and capitalise on opportunities consistently. Cyber security thus transforms from a cost factor into an enabler of digitalisation.

Taking responsibility

Technologies will continue to evolve. Attacks will become more sophisticated. And artificial intelligence will further accelerate this development. This makes one simple realisation all the more important: security does not arise solely from new technologies. It arises from sound decision-making, clear lines of responsibility and consistent implementation.
That is why cyber security today is far more than just a specialist technical subject. It is a management responsibility – and one of the most important prerequisites for ensuring that companies remain successful and capable of acting effectively in the future.

“Cyber security is essential for businesses to remain operational in the long term.” 

Thomas Tschersich

Portraitfoto von Thomas Tschersich von Telekom Security in weißem Hemd und schwarzem Blazer vor grünem Hintergrund

Author: Thomas Tschersich

Thomas Tschersich is Chief Security Officer (CSO) at Deutsche Telekom AG and CEO of Telekom Security. He is responsible for the Group’s cyber and operational security and has more than 30 years’ experience in information and cyber security. He is also active in leading bodies such as ‘Deutschland sicher im Netz’, the Cyber Security Council and numerous other committees working to advance cyber security in Germany and Europe.

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HOME OF IT SECURITY – it-sa Expo&Congress

27–29 October 2026, Nuremberg

it-sa 2026 is Europe’s leading trade fair for cybersecurity and the key meeting place for the IT security industry. It is where decision-makers, technology providers and companies come together to shape the future of digital security.

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This study is based on a survey of 324 executives and senior IT managers from companies in the DACH region. It provides concise insights, relevant key figures and clear guidance for decision-makers looking to strategically advance their cybersecurity strategies.

Why cybersecurity is a management responsibility