In latest acquisition, Cisco buys vulnerability analytics startup Kenna Security SHARE Announcing its third startup acquisition in a week, Cisco Systems Inc. today revealed plans to buy Kenna Security Inc., whose software helps enterprises fix security vulnerabilities in their systems. Kenna previously raised $98.3 million from investors including Citi Ventures. The startup counts the Bank of Hawaii Corp. and Deloitte Ltd among its customers. By buying Kenna, Cisco will obtain the startup’s Kenna.VM software, which reduces companies’ attack surface by helping their cybersecurity teams prioritize their work more efficiently. In an enterprise with thousands of systems, there can be dozens of security issues at any given time, from minor configuration problems with a low risk of facilitating a breach to urgent exploits. Kenna’s software points out the most severe vulnerabilities so administrators can prioritize accordingly and fix them first.