Dev.to
7/1/2026

The Step-by-Step Process of Penetration Testing: A Defensive Guide
Short summary
Penetration testing is a structured, authorized security assessment mimicking cyberattacks to identify vulnerabilities before criminals do. The process follows five phases: planning & reconnaissance, scanning & enumeration, exploitation, maintaining access, and reporting, with each phase building defensive knowledge. Organizations use pen testing to validate security controls, meet compliance requirements (PCI DSS, HIPAA, GDPR), and reduce breach risks.
- •Pen testing is a controlled, authorized security assessment following structured methodologies (NIST, OSSTMM, OWASP)
- •Five-phase approach: planning/recon → scanning → exploitation → maintaining access → reporting
- •Helps organizations identify vulnerabilities, validate controls, meet compliance, and strengthen defenses proactively
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