Explore the intricacies of SSL/TLS and its impact on network security in this 29-minute conference talk by Andy Shepherd from Symantec. Delve into the evolution of encryption protocols, from SSL to TLS 1.3, and understand their components, including cipher suites and key exchange mechanisms. Learn about Perfect Forward Secrecy (PFS) and its significance in modern cryptography. Examine the challenges faced by security devices in dealing with encrypted traffic and the stages of TLS 1.3 awareness in middleboxes. Discover potential security issues in SSL/TLS implementations, such as resigning without verification, and gain insights into seamless integrations for improved security infrastructure. This talk provides valuable knowledge for cybersecurity professionals and network administrators looking to enhance their understanding of encryption protocols and their implications for network visibility and security.