SolarWinds’ longtime CEO, Kevin Thompson, had months earlier indicated that he would be leaving at the end of the year as the company explored spinning off one of its divisions. The SolarWinds board appointed his replacement, current PulseSecure CEO Sudhakar Ramakrishna, on Dec. 7, according to a financial filing, a day before FireEye first publicly revealed the hack on its own system and two days before the change of CEOs was announced. It was also on Dec. 7 that the company’s two biggest investors, Silver Lake and Thoma Bravo, which control a majority stake in the publicly traded company, sold...