SSL/TLS (Secure Sockets Layer/ Transport Layer Security) Home Cybersecurity Dictionary SSL/TLS (Secure Sockets Layer/ Transport Layer Security) Secure Sockets Layer (SSL), the most widely used cryptography protocol in Internet history, was designed to provide communications security over a computer network. SSL was developed by Netscape in the mid-1990s, and was upgraded in 1999 to a more secure version called TLS (Transport Layer Security). The technology continues to evolve and harden with successive versions since then. SSL/TLS establishes the trust required to support all kinds of online communication, including the transmission of confidential data like credit card numbers, sensitive IP, social security numbers and other personally identifiable information. Related TermsEncryptionSSL/TLS (Secure Sockets Layer/ Transport Layer Security)Data Protection Share: Seeking Clarity? View the Cybersecurity Dictionary for top terms searched by your peers. Back to the Dictionary RELATED INSIGHTS BLOG April 13, 2018 Observations on Smoke Tests – Part 2 There are a variety of scanning tools in the market today, from commercial to open source. Some are intended only for identifying a particular vulnera... See Details Read more about Observations on Smoke Tests – Part 2 BLOG February 06, 2018 What Is SSL Web Inspection and Where Should It Occur? (Part 3) In parts one and two of this blog series, I provided an overview of SSL web inspection, and dove deeper into how SSL inspection solutions work and met... See Details Read more about What Is SSL Web Inspection and Where Should It Occur? (Part 3) How Can We Help? Let us know what you need, and we will have an Optiv professional contact you shortly.