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Who is AppCheck?
AppCheck is a private cybersecurity company focused on application security testing and vulnerability assessment for web applications, APIs, networks, and cloud-exposed assets.
- Dynamic application security testing, for web applications and APIs
- External attack surface discovery and vulnerability scanning
- Automated identification of common web security flaws, including OWASP Top 10 classes
- Reporting, remediation workflows, and integration with enterprise security processes
- Support for continuous testing in development, staging, and production environments
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More About AppCheck
AppCheck is used in enterprise security programs to identify exploitable weaknesses in internet-facing and internally hosted applications. Its platform is generally positioned as an automated testing layer for application security and exposure management teams that need repeatable scanning across large estates without relying only on manual penetration testing. In practice, organizations use it to assess web applications, APIs, cloud-hosted services, and network-accessible systems as part of routine security validation and compliance activity.
The company is associated with dynamic analysis techniques that test running applications from the outside in, rather than only reviewing source code. That places it in the application security and vulnerability assessment market, with overlap into attack surface management where discovery of exposed assets is part of the workflow. Typical technical areas in this category include HTTP and HTTPS testing, authenticated scanning, API endpoint assessment, crawler-based discovery, and validation against common weakness classes such as injection, cross-site scripting, authentication issues, and misconfiguration. Enterprise use commonly involves scheduled scans, role-based access, dashboards, evidence for remediation teams, and exports or integrations that fit ticketing and DevSecOps processes.
Compared with manual penetration testing, AppCheck sits in the automated scanning category, providing broader and more frequent coverage but serving a different role from consultant-led adversarial assessment. Compared with static code analysis or software composition analysis, its focus is the behavior and exposure of deployed applications and services. That makes it relevant to security teams that need operational visibility into runtime weaknesses across production and preproduction environments.
Within enterprise IT, AppCheck aligns most directly with application security and DevSecOps programs, and also supports vulnerability management for externally exposed systems. Its current positioning fits organizations standardizing on continuous assessment of web estates, API security testing, and attack surface visibility across modern application environments.
Our description of AppCheck. Updated September 2026.
