Information Security
Definition
Information security protects information from unauthorized access, unwanted alteration, and lack of availability.
The protection of confidentiality, integrity, and availability of information as well as other appropriate security objectives.
Simply explained
Information should only reach the right people, remain unaltered, and be accessible when needed.
Why it matters in practice
The term contributes to secure, maintainable, and high-performance web applications as well as resilient technical decisions.
Example from business
A company controls access, backups, incidents, and supplier risks within an ISMS.
Limits and pitfalls
- Reducing information security to technology or equating compliance with actual security.
Origin & history
Information security evolved from secrecy protection and IT security and was systematized in standards such as ISO/IEC 27000.
Use in mid-sized companies
- Possible example: A company controls access, backups, incidents, and supplier risks within an ISMS.
Frequently asked questions
What does information security mean?
The protection of confidentiality, integrity, and availability of information as well as other appropriate security objectives. What mistakes should be avoided? Reducing information security to technology or equating compliance with actual security.
Sources
Source checked on 10.10.2026. Editorial application examples are hypothetical; no evidence of real customer results.
Editorially reviewed on: