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Also known as: Pentesting
Authorized simulated attacks that evaluate security by exploiting vulnerabilities in systems, applications, or processes.
DESCRIPTION
Penetration Testing validates the exploitability and impact of vulnerabilities under controlled, legal conditions. Engagements define scope, methods, and success criteria via rules of engagement. Approaches range from black-box to white-box and may include social engineering. Results inform remediation, risk assessment, and security hardening. Standards like NIST SP 800-115, PTES, and OSSTMM guide methodology and reporting.
ALTERNATIVE DEFINITIONS
NIST SP 800-115
Penetration testing is security testing in which evaluators attempt to circumvent the security features of an information system.
Defines pentesting as active attempts to bypass security features.
Wikipedia
A penetration test, colloquially known as a pen test, is an authorized simulated cyberattack on a computer system, performed to evaluate the security of the system.
Highlights authorization and evaluation goals.
RELATED TERMS
Vulnerability Scanning Exploit Rules of Engagement Threat Modeling Social Engineering OWASP Testing Guide OSSTMM PTES
COMPETING TERMS
Vulnerability Assessment Red Teaming Bug Bounty
RELATIONS
- Broader: Testing
KNOWLEDGE AREAS
Data Security Testing & Validation Infrastructure
TARGET AUDIENCE
Cybersecurity Engineer Security Architect Chief Information Security Officer IT Auditor IT Manager DevOps Engineer
EXTERNAL SOURCES
- Wikipedia - Penetration test
- NIST - Technical guide to pentesting.
- PTES - Penetration Testing Execution Standard.
- ISECOM - Open Source Security Testing Methodology Manual.
- OWASP - Web Security Testing Guide.
TOP QUESTIONS
How does Penetration Testing differ from Vulnerability Scanning?
Scans identify potential issues; pentesting attempts to exploit them to validate impact and chaining. Pentests provide deeper, contextual evidence.
Category: Comparison
What is the scope of a Penetration Test?
Scope defines in-bounds systems, techniques allowed, time windows, and success criteria. Clear rules of engagement prevent operational disruption.
Category: Requirements
When should organizations run Penetration Testing?
Annually for critical systems, after major changes, or before product launches. High-risk sectors may test more frequently.
Category: Best practices
What are common mistakes in Penetration Testing engagements?
Unclear scope, lack of remediation planning, and ignoring social engineering risks. Testing without follow-up yields limited value.
Category: Mistakes
What are typical deliverables from Penetration Testing?
An executive summary, technical details with proof-of-concept, risk ratings, and prioritized remediation recommendations.
Category: Management
Is Red Teaming the same as Penetration Testing?
No. Red Teaming tests detection and response against realistic adversaries over time; pentesting focuses on exploitable vulnerabilities in scope.
Category: Misunderstanding
What is the biggest risk in Penetration Testing?
Operational impact if tests are not coordinated, and legal exposure without proper authorization. Careful planning mitigates these risks.
Category: Risk
How do bug bounty programs relate to Penetration Testing?
Bug bounties crowdsource discovery under policy; pentesting provides structured, in-depth assessment. Many programs use both approaches.
Category: Relationship
How to get started with Penetration Testing?
Adopt a methodology like PTES or NIST SP 800-115, define a clear scope, and ensure remediation ownership before testing begins.
Category: Getting started