Penetration Testing
Ethical hacking to identify vulnerabilities
Filter Security Solutions
IOActive
Global security consultancy providing penetration testing, hardware security assessments, and security research services.
Security Innovation
Application security company providing security testing, secure coding training, and penetration testing services.
Rhino Security Labs
Cloud security focused penetration testing firm specializing in AWS, Azure, and application security assessments.
Include Security
Boutique security consulting firm specializing in application security assessments, penetration testing, and security research.
NetSPI
Enterprise security testing and vulnerability management company specializing in penetration testing and security assessments.
Coalfire Penetration Testing
Cybersecurity advisory firm offering comprehensive penetration testing services for applications, networks, and cloud environments.
Trustwave SpiderLabs
Elite security research and ethical hacking team providing penetration testing, incident response, and threat intelligence.
Synopsys
Software security company providing application security testing, penetration testing, and security research services.
Rapid7
Leading provider of penetration testing services and vulnerability management solutions for identifying security weaknesses.
Penetration testing is a systematic security assessment methodology where certified professionals simulate cyberattacks against an organization's systems, networks, and applications to identify exploitable vulnerabilities. This proactive approach provides organizations with concrete evidence of security weaknesses and validates the effectiveness of existing security controls under realistic attack conditions.
The practice encompasses several distinct testing approaches including external network assessments, internal infrastructure testing, web application security evaluations, wireless network assessments, and social engineering campaigns. Testing methodologies typically follow structured frameworks such as OWASP, NIST, or PTES, with deliverables including detailed technical findings, risk assessments, and prioritized remediation recommendations.
Organizations implement penetration testing to meet regulatory compliance requirements, validate security investments, and reduce cyber risk exposure. The process requires specialized expertise in current attack techniques, security tools, and industry-specific compliance standards, making vendor selection critical for achieving meaningful security improvements and demonstrating due diligence to stakeholders and regulators.