Mark Hacker serves as Executive Vice President, Chief Legal Officer, and Public Sector at Lumen Technologies Inc., where he leads the company's global legal function and drives growth in its public sector business. With over two decades of experience in the telecommunications industry, Hacker joined CenturyLink (now Lumen) in 2002 as Vice President and General Counsel for Global Government Solutions. His early career included key roles at MCI Communications, where he honed his expertise in regulatory compliance, government contracts, and complex litigation, establishing a foundation for his strategic leadership in highly regulated sectors. Throughout his tenure at Lumen, Hacker has played a pivotal role in navigating major corporate milestones, including the $34 billion acquisition of Level 3 Communications in 2017 and the rebranding to Lumen Technologies in 2020. As Chief Legal Officer since 2020, he oversees all legal, compliance, ethics, and regulatory matters, ensuring alignment with evolving FCC, DOJ, and international standards. His leadership has been instrumental in securing multimillion-dollar public sector contracts with federal agencies, state governments, and educational institutions, while mitigating risks in a competitive landscape. In his public sector role, Hacker spearheads Lumen's strategy to deliver mission-critical network solutions to government and enterprise clients, fostering innovation in edge computing, cybersecurity, and 5G infrastructure. A graduate of the University of Virginia School of Law, Hacker is recognized for his proactive approach to corporate governance and advocacy, earning accolades such as being named one of the "Most Influential Leaders in Legal" by Law360. Under his guidance, Lumen continues to strengthen its position as a trusted partner for public sector digital transformation.