KKR, a global investment firm, completed the acquisition of Barracuda Networks, a provider of cloud-first security solutions, from Thoma Bravo, a software investment firm, for $4bn. "We believe that with the support of KKR, we will continue to invest in growth and foster a culture that gives our team the resources and inspiration to continue to create and deliver the next generation of leading cybersecurity solutions for our customers and partners. We are very appreciative of Thoma Bravo’s support and very excited to be working with KKR on this next phase of Barracuda’s journey," Hatem Naguib, Barracuda CEO.