Les Buday, former president and chief operating officer of Tetrad Digital Integrity, has been named director of cybersecurity at McLean, Va.-based systems integrator HumanTouch.

Broadcom (Nasdaq: AVGO) has wrapped up its acquisition of Symantec’s (Nasdaq: SYMC) enterprise security assets for approximately $10.7B.

Broadcom (Nasdaq: AVGO) has agreed to acquire Symantec's (Nasdaq: SYMC) enterprise security assets for approximately $10.7B in cash. The transaction includes the acquisition of the Symantec name and is expected to conclude before the end of calendar year 2019, subject to regulatory approvals and other customary closing conditions, Symantec said Thursday.

ManTech International (Nasdaq: MANT) has secured a potential 10-year, $959 million contract to help a Defense Department agency manage information technology systems. The single-award, indefinite-delivery/indefinite-quantity contract covers managed services for the customer agency’s enterprise IT users worldwide, ManTech said Thursday. Kevin Phillips, ManTech CEO and president and a two-time Wash100 recipient, said the …

ManTech International (Nasdaq: MANT) hosted a retirement party for Bill Varner, outgoing president of the Herndon, Virginia-based information technology services contractor’s mission, cyber and intelligence solutions group. Varner, who is also an inductee into Executive Mosaic‘s Wash100 for 2017, will retire by the end of December after an eight-year career at ManTech. …

Sotera Defense Solutions has promoted Rick White, previously vice president and solutions architect, to serve as chief information officer. The company said Wednesday White will be responsible for developing and implementing information technology offerings aimed at helping customers fulfill information- and technology-related missions. John Hillen, president and CEO, said White …

TASC has promoted two executives to the senior vice president ranks and a retired Navy vice admiral to lead the company’s defense business unit, effective immediately. Bruce Phillips, formerly vice president of the infrastructure protection and security business unit, will serve as senior VP of the civil and infrastructure security group …

CH2M HILL has appointed Patrick O’Connell as president of its major government programs. O’Connell will be responsible for growing the company’s business in large-scale global government programs. The company said this will entail identifying new opportunities, recruiting strategic personnel and securing major government programs worldwide. O’Connell will report directly to Michael McKelvy, president of CH2M HILL’s government, environment …

Converged Security Solutions has acquired Maverick Cyber Defense for an undisclosed sum in an effort to expand its end-to-end security platforms.

ManTech International (Nasdaq: MANT) has acquired analysis services provider H2M Group for an undisclosed sum in a move to expand work with the geospatial and intelligence communities. H2M will operate under the mission, cyber and intelligence solutions business led by Rick Wagner, a 2019 Wash100 Award recipient.