# security engineering

> specialized field of scientific engineering that focuses on the security and safety aspects in the design, implementation and operation of systems

**Wikidata**: [Q365674](https://www.wikidata.org/wiki/Q365674)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Security_engineering)  
**Source**: https://4ort.xyz/entity/security-engineering

## Summary
Security engineering is a specialized field of scientific engineering that focuses on the security and safety aspects in the design, implementation, and operation of systems. It is considered a branch of engineering and an interdisciplinary science, integrating principles from both fields to build dependable systems.

## Key Facts
*   Security engineering is a specialized field of scientific engineering.
*   It focuses on the security and safety aspects in the design, implementation, and operation of systems.
*   It is an instance of a branch of engineering and an interdisciplinary science.
*   Security engineering is a subclass of both engineering and computer science.
*   It is a facet of systems engineering.
*   The field is practiced by computer security engineers.
*   Security engineering is distinct from safety engineering.
*   It is related to fields such as computer science, cryptography, privacy engineering, and cybersecurity engineering.
*   A key descriptive source for the field is "Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition."

## FAQs
### Q: What is security engineering?
A: Security engineering is a specialized field of scientific engineering that focuses on integrating security and safety considerations into the design, implementation, and operation of systems. It aims to ensure systems are dependable and resilient against threats.

### Q: What other fields is security engineering related to?
A: Security engineering is closely related to computer science, cryptography, privacy engineering, and cybersecurity engineering. It is also considered a facet of systems engineering.

### Q: Who practices security engineering?
A: Security engineering is primarily practiced by computer security engineers, who apply its principles to develop and maintain secure systems.

### Q: Is security engineering the same as safety engineering?
A: No, security engineering is different from safety engineering. While both deal with aspects of system dependability, security engineering specifically addresses threats and vulnerabilities, whereas safety engineering focuses on preventing harm to users or the environment.

## Why It Matters
Security engineering is crucial in an increasingly interconnected world where systems are constantly exposed to various threats. It matters because it provides the foundational principles and practices for building dependable systems that can withstand attacks, protect sensitive information, and ensure continuous operation. By focusing on security and safety from the initial design phase through implementation and operation, it helps prevent costly breaches, data loss, and system failures. This interdisciplinary science integrates knowledge from computer science and engineering to create robust defenses, making digital infrastructure and critical systems resilient. Without effective security engineering, systems would be vulnerable, undermining trust and potentially leading to significant economic, social, and personal consequences. It ensures that the systems we rely on daily, from financial transactions to critical infrastructure, are built with an inherent capacity to be secure and safe.

## Notable For
*   Its unique focus on integrating both security and safety aspects throughout the entire lifecycle of system design, implementation, and operation.
*   Being an interdisciplinary science that draws upon principles from both engineering and computer science to create robust systems.
*   Its explicit distinction from safety engineering, highlighting its specific emphasis on protection against malicious threats and vulnerabilities.
*   Its role as a facet of systems engineering, emphasizing its application in the broader context of complex system development.

## Body

### Definition and Scope
Security engineering is defined as a specialized field of scientific engineering. Its primary focus is on the security and safety aspects inherent in the design, implementation, and operation of various systems. This encompasses ensuring that systems are dependable and resilient against potential threats and failures.

### Classification
Security engineering is classified as a branch of engineering and an interdisciplinary science. It is considered a subclass of both engineering and computer science, indicating its foundational ties to these broader disciplines. Furthermore, it is identified as a facet of systems engineering.

### Related Fields
The field of security engineering is closely associated with several other disciplines:
*   **Computer science:** The study of computation.
*   **Cryptography:** The practice and study of secure communication techniques.
*   **Privacy engineering:** An emerging discipline focused on providing methodologies, tools, and techniques for engineered systems to offer acceptable levels of privacy.
*   **Cybersecurity engineering:** Another engineering discipline.

A related concept is "leak before break."

### Practitioners
Security engineering is practiced by professionals known as computer security engineers.

### Distinctions
Security engineering is explicitly identified as being different from safety engineering. While both contribute to system dependability, security engineering specifically addresses threats and vulnerabilities, whereas safety engineering focuses on preventing harm.

### Aliases
Security engineering is also known by the following aliases:
*   セキュリティ・エンジニアリング
*   預設允許
*   安全工程

### Key Descriptive Source
A significant descriptive source for security engineering is the publication "Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition." Specifically, Chapter 1, titled "What Is Security Engineering?", provides foundational insights into the field.

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## References

1. Freebase Data Dumps. 2013
2. Quora
3. KBpedia
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)