Unless otherwise stated, all financial measures discussed on this call, other than revenue, will be on a non-GAAP basis. I'll then hand the call over to Jonathan to discuss our financial results in more detail and provide our updated outlook for the remainder of the year. In the second quarter, we generated revenue of $219.8 million, representing 13% year-over-year growth. We also delivered adjusted EBITDA of $62.8 million or 28.6% of revenue and generated free cash flow of $51 million.
Historically, that has often been because our customers have tended to be healthy, growth-oriented institutions that are on the acquiring side of transactions. Whether our customer is the acquirer or the acquired institution, Q2 is often in a strong position when the combined entity evaluates the technology needed to support the next phase of growth post-acquisition. This was our biggest conference yet, with record customer and prospect attendance. The customer engagement at CONNECT was very strong, and one of the clearest themes we saw was the demand for practical AI.
As we've discussed in recent quarters, the cost and complexity of fraud continues to increase across financial institutions. That is precisely where Q2 sits, and it is why we believe fraud is one of the most compelling growth opportunities in our portfolio. We are pleased to report another quarter of strong financial performance, with second quarter results above the high end of our guidance on both revenue and adjusted EBITDA. Total revenue for the second quarter was $219.8 million, an increase of 13% year-over-year and 2% sequentially.