Penetration Testing

Definition

Penetration testing is an authorized, human-driven attack simulation: a skilled tester actively attempts to exploit weaknesses – chaining vulnerabilities, abusing misconfigurations, phishing users, escalating privileges – to demonstrate what a real attacker could actually achieve in a specific environment. That's categorically different from vulnerability scanning, which is automated enumeration of known weaknesses: a scan tells you a door has a weak lock; a pen test picks the lock, walks in, and shows you what was reachable from there.

Why it matters to an MSP

Clients increasingly need pen tests for external reasons: compliance frameworks expect them (the FTC Safeguards Rule expects monitoring or periodic testing, HHS's proposed HIPAA Security Rule update would make annual penetration testing mandatory, and CMMC-bound defense contractors face third-party assessment scrutiny), and cyber-insurance applications ask about them. The near-universal channel practice is to partner with a third-party testing firm rather than self-test – partly because offensive testing is a specialist trade, but mostly independence: an MSP testing the environment it built and operates is grading its own homework, and auditors, insurers, and regulators discount the result. The MSP's profitable role sits around the test: scope it, prepare the environment, receive the findings, and sell the remediation roadmap – which is where most of the revenue lives anyway. Resell through a testing partner with a coordination markup, or pass it through and charge for remediation.

Related terms: Vulnerability Management, Compliance, Cyber Insurance