In today’s rapidly evolving digital landscape, the security of information systems is paramount. Penetration testing, or Pen Testing, serves as a critical tool in identifying potential weaknesses that malicious hackers might exploit. From our perspective, penetration testing is one form of an independent audit that a company can conduct to test the strength of their cyber defence. Based on more than 200 diagnostics (cybersecurity maturity assessments) that we have done over the last 2,5 years, we can say that such audits are still not utilized to their full potential. This article explores what penetration testing is, its importance, different approaches, and how CyberCompare can aid businesses in ensuring robust security.