Christiane will then review our financial results for the second quarter of 2026 before providing guidance for the third quarter and updating the full year. Our GAAP results and GAAP to non-GAAP reconciliations are located in our earnings press release and in the presentation that accompany today's remarks, both of which are posted on our investor relations website. The prepared remarks will also be posted on the quarterly earnings section of our investor relations website following today's call. Lastly, all references to growth are on a year-over-year basis unless noted otherwise.
We are very pleased with our excellent second quarter result, driven by our differentiated strategy and our innovation, strong execution, and broad-based demand. Billings growth 33%, while total revenue increased 26%, propelled by 52% growth in product revenue. In the second quarter, Fortinet SASE Firewall business growth 34% to over $2 billion, cementing our position as a top player in this space. As we announced yesterday, the new FortiGate 1200G, the next generation SASE firewall that combine local enforcement with cloud-delivered security to meet evolving customer demand for data privacy, performance, and AI infrastructure management.
We believe this have driven a strong product growth recently and has an addressable market that is approximately two to three times larger than the cloud-only SASE or competitor offering. We also see strong demand across our other strategic pillar, AI-driven SecOps, which had billings growth of 25%, supported by over 20 AI-enabled solutions on our platform. As organization deploy and using AI tools throughout their operations, they realize they must modernize their security to handle the complex, high-speed threat of AI era. We delivered a strong second quarter, exceeding the high end of our guidance across billings, total revenue, operating margin, and earnings per share.