Denver-based cybersecurity company Optiv Security Inc. has added a pair of big names in the security space to its board.

One is David Petraeus, the former CIA director and top U.S. commander in Iraq and Afghanistan.

The retired four-star general comes to Optiv through his position as a partner at private equity firm Kohlberg Kravis Roberts (KKR & Co. LP), which bought a controlling stake in Optiv in February.

Also joining the Optiv board is David DeWalt, a former CEO of McAfee Security and FireEye Inc. He will be Optiv's vice chairman.

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