# application security

> measures taken to improve the security of an application, often by finding, fixing and preventing security vulnerabilities

**Wikidata**: [Q4781497](https://www.wikidata.org/wiki/Q4781497)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Application_security)  
**Source**: https://4ort.xyz/entity/application-security

## Summary
Application security (AppSec) is the practice of protecting software applications from threats by identifying, fixing, and preventing security vulnerabilities. It is a critical subset of information security, focusing on safeguarding applications—including web apps, APIs, and services—through measures like data validation and vulnerability scanning.

## Key Facts
- Application security is a type of security and a subclass of information security.
- It is also known by the aliases **AppSec** and **应用安全** (Chinese).
- The field includes specialized branches like **web application security**, which deals with websites, web apps, and web services.
- **Data validation** is a key technical process within application security.
- The **Open Web Application Security Project (OWASP)** is a major organization in this field, founded between **2001 and 2004**, headquartered in **Belgium**, and employing **8 people** as of available data.
- Tools like **Cyber Chief** are used for web application and API vulnerability scanning.
- Application security is documented in **12 Wikidata sitelinks**, including Wikipedia articles in **12 languages** (Arabic, Azerbaijani, Bengali, Central Kurdish, English, Persian, Korean, Malayalam, Odia, Russian, Ukrainian, and Chinese).
- It holds identifiers like **Freebase ID /m/07nsdp** and a discontinued **Microsoft Academic ID 77109596**.

## FAQs

**What is the difference between application security and web application security?**
Application security is a broad discipline covering all software applications, while web application security is a specialized branch focusing specifically on websites, web apps, and web services.

**What are some key techniques used in application security?**
Core techniques include **data validation** (ensuring input conforms to expected formats) and vulnerability scanning (using tools like **Cyber Chief** to detect flaws in web apps and APIs).

**What role does OWASP play in application security?**
OWASP (Open Web Application Security Project) is a leading nonprofit organization that provides resources, tools, and guidelines to improve software security. Founded in **2001–2004**, it is headquartered in Belgium and has been instrumental in standardizing security practices.

**In which languages is application security documented on Wikipedia?**
Application security has Wikipedia articles in **12 languages**: Arabic, Azerbaijani, Bengali, Central Kurdish, English, Persian, Korean, Malayalam, Odia, Russian, Ukrainian, and Chinese.

## Why It Matters
Application security is essential because software vulnerabilities are a primary attack vector for cyber threats. By systematically identifying and mitigating risks—such as injection flaws, broken authentication, or insecure APIs—it protects sensitive data, prevents breaches, and ensures the reliability of digital services. In an era where applications drive business, finance, healthcare, and governance, weak security can lead to catastrophic financial losses, reputational damage, and legal consequences. OWASP and tools like **Cyber Chief** provide structured frameworks to help developers and organizations proactively defend against evolving threats, making AppSec a cornerstone of modern cybersecurity.

## Notable For
- Being a foundational component of **information security**, with a dedicated focus on software applications.
- Spawning specialized subfields like **web application security** and **API security**.
- Association with **OWASP**, one of the most influential organizations in software security, known for its **Top 10 vulnerabilities list** and open-source tools.
- Integration of technical processes like **data validation** to prevent common attack vectors (e.g., SQL injection, XSS).
- Global recognition, with documentation in **12 languages** and widespread adoption across industries.

## Body

### Definition and Scope
Application security (AppSec) refers to the **measures taken to improve the security of an application** by finding, fixing, and preventing security vulnerabilities. It is classified as a **type of security** and a **subclass of information security**, which broadly aims to protect information by mitigating risks. Unlike general information security, AppSec zeroes in on the unique threats facing software applications, including desktop, mobile, and web-based systems.

### Relationship to Broader Security Domains
Application security is part of the larger **information security** ecosystem but intersects with specialized areas:
- **Web application security**: A branch focused exclusively on securing websites, web applications, and web services. This includes protecting against threats like cross-site scripting (XSS), cross-site request forgery (CSRF), and server-side vulnerabilities.
- **Data validation**: A critical technical process within AppSec that ensures user input and system data adhere to expected formats, preventing exploits like SQL injection or buffer overflows.

### Key Organizations and Tools
- **OWASP (Open Web Application Security Project)**: A nonprofit organization founded between **2001 and 2004**, headquartered in **Belgium**, with **8 employees** (as per available data). OWASP is renowned for its **Top 10 Project**, which lists the most critical web application security risks, and for developing open-source tools like **ZAP (Zed Attack Proxy)**.
- **Cyber Chief**: A commercial tool designed for **web application and API vulnerability scanning**, helping organizations automate the detection of security flaws.

### Technical Processes and Methodologies
Application security employs a mix of proactive and reactive strategies:
- **Static Application Security Testing (SAST)**: Analyzes source code for vulnerabilities without executing the program.
- **Dynamic Application Security Testing (DAST)**: Tests running applications for runtime vulnerabilities.
- **Interactive Application Security Testing (IAST)**: Combines SAST and DAST by analyzing code during execution.
- **Data validation**: Ensures inputs are sanitized and conform to expected parameters, mitigating injection attacks.

### Global Documentation and Language Support
The concept of application security is well-documented across **12 Wikipedia language editions**, indicating its global relevance:
- **Arabic (ar)**, **Azerbaijani (az)**, **Bengali (bn)**, **Central Kurdish (ckb)**
- **English (en)**, **Persian (fa)**, **Korean (ko)**, **Malayalam (ml)**
- **Odia (or)**, **Russian (ru)**, **Ukrainian (uk)**, **Chinese (zh)**

### Identifiers and Classification
- **Wikidata description**: "measures taken to improve the security of an application, often by finding, fixing and preventing security vulnerabilities."
- **Freebase ID**: `/m/07nsdp`
- **Microsoft Academic ID (discontinued)**: `77109596`
- **Sitelink count**: **12** (Wikidata)
- **Instance of**: **type of security**
- **Subclass of**: **information security**

### Industry Impact and Adoption
Application security is critical across industries where software drives operations, including:
- **Finance**: Protecting banking apps and payment systems from fraud.
- **Healthcare**: Securing electronic health records (EHR) and telemedicine platforms.
- **E-commerce**: Preventing data breaches in online retail and payment gateways.
- **Government**: Safeguarding citizen data in public sector applications.

The rise of **DevSecOps**—integrating security into DevOps pipelines—has further embedded AppSec into modern software development lifecycles (SDLC), ensuring security is addressed continuously rather than as an afterthought. Tools like **Cyber Chief** and frameworks from **OWASP** provide actionable guidance for developers, security teams, and organizations to build and maintain secure applications in an increasingly threat-prone digital landscape.

## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)