SSL and TLS Versions: Celebrating 30 Years of History

March 2025 marks the 30th anniversary of the secure sockets layer (SSL) protocol’s version 2.0 debut. Celebrate with us as we explore the history of the various SSL and TLS protocol versions over the last three decades

When Netscape Communications unveiled its groundbreaking Netscape Navigator browser in November 1994, few knew of the innovations that were taking place behind the company’s closed doors.  

It was here that the first iteration of the secure sockets layer (SSL) protocol was born (i.e., SSL 1.0). Although this version was never publicly released, the second version of the SSL protocol (SSL 2.0) made its public debut in Netscape Navigator 1.1 early the following year. It was this version of the SSL protocol that laid the groundwork for establishing the foundation of digital trust that we often take for granted today.

As we celebrate SSL 2.0’s 30th anniversary, it’s the perfect opportunity to look back to explore how this pioneering technology has evolved over time — from the vulnerable SSL 2.0 to the robust security of the latest TLS protocol versions (TLS 1.2 and 1.3) that protect our digital lives today.   

Let’s hash it out.

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