Private equity firms Summit Partners and Turn/River agreed to invest $625m in Invicti Security, a provider of application security testing. "We are absolutely thrilled to welcome Summit for this next chapter in our company's growth. We're confident that Summit's extensive security experience will help accelerate our product innovation, expand our reach and address the urgent problem of web application security faced by organizations around the world," Ferruh Mavituna, Invicti Founder and CEO.