Capabilities:
CybersecurityDavid Sun
Biography
David Sun is a Principal and National Leader of incident response and forensics at CohnReznick’s Cybersecurity, Technology Risk, and Privacy Practice. He has 25 years of cybersecurity and IT management experience responding to data breaches and privacy incidents, internal employee malfeasance, and government agency investigations.
Sun has served as a testifying expert or court appointed expert on hundreds of litigation matters. This includes providing expert testimony related to the handling of classified information by a Cabinet member and the destruction of public records by a sitting mayor of a major city; providing security assessments in support of the United Nations, the 2004 Summer Olympics, and various United States Federal Reserve Banks; assisting multiple state attorneys general to investigate a variety of data privacy violations; and more. Sun draws upon his experience responding to cyber incidents when providing cybersecurity advisory services. This allows him to create pertinent and practical processes to help mitigate the latest risks of cyber-attacks.
Prior to joining CohnReznick, from 2002 to 2019, Sun was the founder and president of SunBlock Systems, Inc., a global litigation and cybersecurity advisory firm. Through acquisition, he joined CliftonLarsonAllen (CLA) as a principal and its national practice leader for cyber incident response and forensics. He was also a co-founder and Chief Technology Office of S34A, a company that performed research on advanced computer forensics techniques for the Department of Homeland Security and other government agencies.
Firm Overview
As a top advisory, assurance, and tax firm, CohnReznick provides a fully integrated range of advisory services, across three distinct business groups. Value360, one of the firm’s leading advisory services, provides a suite of solutions including transaction advisory services comprising due diligence, SPAs and purchase price disputes, restructuring, bankruptcy, forensic accounting, and loan workout services. The practice provides project finance solutions for developers, investors, sponsors, and P3, valuation services and valuation-related litigation, performance improvement services spanning strategy, operations, revenue growth, efficiency, cost reduction, post-acquisition integration, and a range of M&A insurance advisory services.
Global Consulting Solutions, the firm’s fastest growing advisory practice, offers specialized services focused on risk management, government contracting, digital innovation, and business performance improvement. Key GCS solutions include cybersecurity and enterprise risk management, CFO Advisory, managed services and outsourcing, digital transformation, AI and data automation, and enterprise resource planning. A dedicated team of GCS advisors provide government contractors with a suite of services to help them win and manage contracts. Government advisory provides audit and tax, program management, integrity monitoring, and other solutions for federal, state, and local government agencies.