Certificate pinning is a security measure used in computer networking and something Chris candidly admits to his lack of understanding. Matt and Izar explain certificate pinning, a client-side operation that adds an extra layer of security to the Transport Layer Security (TLS) protocol and ensures that the client application checks the server's certificate against a known copy of that certificate. The discussion leads to a reflection on the vast amount of knowledge required in cybersecurity, emphasizing the importance of continuous learning and the willingness to admit and fill gaps in one's understanding. Engage in further research and discussion, and realize cybersecurity is a "never stop learning" discipline. FOLLOW OUR SOCIAL MEDIA: ➜Twitter: @SecTablePodcast ➜LinkedIn: The Security Table Podcast ➜YouTube: The Security Table YouTube Channel Thanks for Listening!