Blackstone and ClearSky, a cybersecurity-focused investment firm, completed the $400m investment in FireEye, an intelligence-led security company. "We have confidence in FireEye's long-term strategic vision and its world-class set of cyber security products and services. As a member of the Board of Directors, I look forward to partnering with management and my fellow board members to help drive the company’s future growth and build shareholder value,” Viral Patel, Blackstone Senior Managing Director.