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IT Security & Information Security - Understandable and Practical

Definitions, key differences, real world examples, and a checklist for businesses and public sector organisations. Automatically identify and prioritise vulnerabilities with OPENVAS.

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Reading time: 12 minutes

Digitalisation creates opportunities and risks. Successful organisations protect information and systems with clear processes, reliable technology, and well trained teams.

Key points at a glance

IT security protects technology and the processes that keep business operations running. This includes operational processes as well as the safety of people in critical environments such as healthcare, manufacturing, and other critical infrastructure.

Information security focuses on protecting information and privacy, ensuring that sensitive data is handled, stored, and accessed securely.

Data security concentrates specifically on safeguarding the data itself, regardless of where it resides or how it is used. For additional context, it is also worth taking a look at the data security page.

Key benefits for compliance, risk management, and auditing include:

  • Meet regulatory requirements such as GDPR, NIS2, and ISO 27001
  • Make risks transparent and reduce them quickly
  • Speed up audits with clear, verifiable evidence

On this page:

What is IT security? What is information security? Comparison and differentiation Why this matters Cyber resilience ISO 27001 & BSI IT-Grundschutz OPENVAS in practice Customer testimonials Cyber security fundamentals Cyber security checklist Frequently asked questions (FAQ) Contact

What is IT Security?

IT security covers technical measures designed to protect systems, networks, and applications from attacks, damage, and outages. Its aim is to safeguard confidentiality, integrity, and availability across all IT supported processes.

Typical Risks

  • Phishing, malware, ransomware
  • Data loss due to errors or faults
  • Unauthorised access to sensitive information
  • Outages caused by DDoS attacks or misconfigurations

Good Practice

  • Keep firewall and antivirus protection up to date
  • Implement patch management consistently
  • Strict access controls and logging
  • Continuous vulnerability management with OPENVAS
OPENVAS Dashboard - Vulnerability Management

OPENVAS dashboard with a concise overview of IT assets, identified vulnerabilities, CVSS severity ratings, and how they evolve over time.

What is Information Security?

Information security protects information regardless of its form. It considers people, processes, and technology. The aim is to preserve confidentiality, integrity, and availability for all business critical information.

Examples beyond IT

  • Secure storage of personnel records
  • Training on handling confidential data
  • Processes for downtime and recovery
  • Clean desk policy

Business Benefits

  • Fewer incidents and less damage
  • Greater trust among customers and partners
  • Evidence for audits, for example ISO 27001
  • Support with compliance and assessments
IT security and information security

Information security involves people, processes, and technology. Only when all three areas work together can information be protected effectively and risks reduced sustainably.

Comparison and Differentiation: IT Security, Information Security and Data Security

Information security provides the overarching framework. IT security and data security are specialised sub areas. The relationship is illustrated in the diagram.

IT security and information security
Area Focus Typical measures OPENVAS support
Information security Overarching framework ISMS, training, roles, and policies Risk overview, reports for audits
IT security Technical systems Patch management, segmentation, monitoring Automated scans, CVSS based prioritisation
Data security Data layer Backups, encryption, DLP Audit ready evidence, trend reports

You can find more on data security and vulnerability management on the respective pages.

Why this is matters

An incident can quickly lead to downtime, costs, and loss of trust. Preventive measures make economic sense and strengthen operational resilience.

Operational Continuity

Reduce unplanned downtime

Trust

Increase reliability for customers and partners

Compliance

Meet reporting and evidence requirements more easily

Cyber Resilience

Resilience assumes that incidents will happen. What matters is preparing, detecting, responding, and recovering. This includes backups, incident response plans, clear responsibilities, and continuous vulnerability analysis.

IT security and information security

Cyber resilience grows through proactive protective measures and a fast, coordinated response to attacks.

ISO 27001 and BSI IT-Grundschutz

Both frameworks support the development of an information security management system. They structure risks, controls, and evidence, and establish clear responsibilities.

Aspect ISO 27001 BSI IT baseline protection
Focus An ISMS with a risk based approach Building blocks with threats and controls
Evidence Internationally recognised certification A methodology with strong roots in Germany
Practical use Flexible depending on context Standardised and very detailed

Helpful resources: Vulnerability management, OPENVAS products, Greenbone Blog.

OPENVAS in Practice

An ISMS defines what needs to be done. OPENVAS helps with how to do it. The platform automatically identifies risks, assesses them, and provides clear recommendations for action. This reduces the attack surface and generates audit ready evidence without additional effort.

Transparency

A complete overview of assets and risks

Prioritisation

Focus on critical gaps based on CVSS and EPSS

Evidence

Reports for teams, management, and auditors
Learn more about vulnerability management

Customer Testimonials

“Our company stands for security and data protection. We have to maintain a very high standard of security on our servers. As we also attach great importance to privacy, we do not use any cloud-based tools. The on-premise OPENVAS SCAN Appliance automatically performs regular security scans on all our servers. The “OPENVAS ENTERPRISE FEED” ensures that current security vulnerabilities are found.”
Threema GmbH
Daniel Steiner, System Engineer
“We recently started using the Greenbone Cloud Service. The cloud-based vulnerability management tool gives us peace of mind that our sensitive data is in safe hands, fully GDPR compliant. In addition, the Greenbone Cloud Service offer unparalleled flexibility and scalability, which has been instrumental in helping my company grow. Overall, I highly recommend this tool to anyone looking to improve the security of their business.”
JobRad GmbH
Thomas Goch, System Engineer
“For us, IT security is not a one-off project, but an ongoing process. With Greenbone’s solution, we continuously check our systems for vulnerabilities and minimize IT risks in a targeted manner. This is a great addition to our Information Security Management System (ISMS), which integrates a SIEM solution and a SOC. This enables us to protect sensitive patient data in the long term and strengthen the digital resilience of our hospital IT.”
Niels-Stensen-Kliniken Osnabrück
Andreas Lockau, Head of IT & Medical Technology (MIT)

Cyber Security Fundamentals

ISMS

An information security management system aligned with ISO 27001, with clear responsibilities and processes

CIA Triad

Confidentiality, integrity, and availability as the core pillars

Vulnerability Management

Identifying, assessing, and remediating vulnerabilities, supported by OPENVAS

Zero Trust

Every access request is verified and only then granted

CVE and CVSS

CVE identifies vulnerabilities, CVSS rates their severity

Patch Management

Systematic deployment of updates to close known security gaps

Cyber Security Checklist

The path to comprehensive security starts here. This checklist gives you a clear roadmap to minimise risks in your IT infrastructure and strengthen your organisation’s resilience.

  • Enable MFA
  • Review access rights
  • Test backups
  • Automate patch management
  • Set up an OPENVAS scan
  • Plan incident response

Download the checklist as a PDF

FAQ: IT Security and Information Security

What is the difference between IT security and information security?

IT security focuses on technology and systems. Information security also considers processes, people, and information in all formats.

How does OPENVAS support information security?

OPENVAS provides the technical data foundation for the ISMS. It identifies vulnerabilities, prioritises risks, and generates reports for audits.

When does an ISMS make sense?

When complexity increases and in regulated industries. It creates structure, clear responsibilities, and robust evidence.

What does data security mean?

Protecting the data base from loss, manipulation, and unauthorised access. Details are available on the data security page.

Contact and Consultation

Start with a free initial consultation. We will support you in reducing risks and protecting your IT in the long term.

Get in touch now Discover OPENVAS

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