Former Clearwire CEO Bill Morrow last month, citing "personal reasons" for stepping down. Clearwire also announced that its Chief Commercial Officer Mike Sievert and its CIO Kevin Hart were leaving the company last month to "pursue other opportunities." The company is currently headed by interim CEO John Stanton, who had served as chairman prior to Morrow's resignation.

Clearwire and Sprint first in 2008, when they secured $3.2 billion in total investments from several major tech and communications companies, including Google, Intel, Comcast, Time-Warner Cable and Bright House Networks. Since then Clearwire has worked to build out a nationwide network that spans all major U.S. markets and that covers 120 million points of presence. The majority of Clearwire WiMAX customers get their access wholesale from third-party providers such as Sprint, Comcast and Time-Warner Cable.

in Network World's Anti-malware section.