David Sun, Cissp, Cce, Ence work email
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David Sun, Cissp, Cce, Ence personal email
David Sun, Cissp, Cce, Ence phone numbers
I get called when executives have a cyber crisis.Whether a company has been hit by hackers, had their own employees steal sensitive information or leaders just lose sleep fearing these things could happen, I help business leaders understand what happened in their systems and what they should do to make their way out of the IT crisis. I am a technologist, first responder, crisis manager and litigation expert with a unique understanding of what matters most in cybersecurity.During my 25 years of experience managing data breach and privacy incidents, internal employee malfeasance and government agency investigations I have helped nearly a thousand organizations:• Respond to ransomware attacks, conduct ransom negotiation and resume business operations• Investigate email compromises, data breaches and multi-million-dollar losses from wire fraud • Perform forensic analysis, reconstruction and post-breach remediation • Prosecute departing employees for theft of sensitive information, destruction of documents and unauthorized activities• Create effective cybersecurity programs to improve data and systems security to avoid the above issuesI have served as a consulting expert, testifying expert or court appointed expert on hundreds of litigation matters and specialize in describing technology-related issues in understandable terms to executives, attorneys, judges, and juries. Examples of my experience that I can disclose include: • Expert testimony during the Secretary of State Hillary Clinton e-mail server controversy • Investigation into destruction of public records by sitting New Orleans Mayor C. Ray Nagin• Assisting Attorney Generals from multiple states investigate various data privacy violations• Security assessments for the United Nations and various United States Federal Reserve Banks • Spending a year securing the 2004 Summer Olympics in Athens, Greece• Adjunct Professor of Computer Forensics at George Mason University • Faculty member for the Virginia and Massachusetts State Bars’ continuing education programs• Multiple patents and publications in the field of Computer ForensicsFeel free to message me if you need my expertise or assistance from my team.
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PartnerCohnreznickGreat Falls, Va, Us -
PrincipalCohnreznick Llp Apr 2023 - PresentNew York, New York, UsFor twenty five years I have helped clients with data and systems security, cyber forensic response and post-breach remediation. I am a practical problem solver and technologist, describing technology related issues in understandable terms to executives, attorneys, judges and juries. I have testified as an expert witness in various federal and state courts in the areas of computer forensics and cybersecurity.I am a Principal at the firm, leading our security incident response and recovery; computer forensics and litigation; and cloud security services. I lead a team of professionals responding to data breaches and ransomware attacks, negotiating ransom payments, and conducting employee malfeasance and government agency investigations for both public and private sector clients. In addition, we provide a suite of proactive cybersecurity services to help mitigate the risk of a cyber attack.
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PrincipalCla (Cliftonlarsonallen) Jan 2021 - Dec 2022UsThrough their acquisition of blumshaprio, I was a Principal at CLA and national practice leader for cyber incident response and forensics. I also created a Microsoft365 cloud security review service and led various proactive cybersecurity services. -
PartnerBlumshapiro Oct 2019 - Dec 2020West Hartford, Connecticut, UsWith their acquisition of SunBlock Systems, I was a Partner with blumshapiro where I continued my practice of incident response, computer forensics and dark web investigations. -
Founder And CeoSunblock Systems, Inc. Apr 2001 - Oct 2019Founder and President of SunBlock Systems, Inc., a global litigation advisory firm that specialized in electronic evidence. We assisted corporate executives and litigating attorneys with the issues related to litigation. Specifically we provided: * Computer forensic investigations* Data breach response and mitigation* Electronic Discovery collection, processing, hosting and review services* Expert witness testimony* Consulting roles serving as executive management and/or subject matter expertOur typical clients were law firms, corporate law departments, and government agencies. SunBlock was acquired by blumshapiro in 2019,
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Co-Founder And Chief Technology OfficerS34A, Inc. Oct 2012 - Sep 2019As the co-founder and Chief Technology Officer of S34A, Inc., I led the technical aspects of a research and development company. Our work is focused in the area of computer forensics and received funding by the US Department of Homeland Security (DHS) and Virginia Center for Innovative Technology.
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Adjunct ProfessorGeorge Mason University Aug 2003 - Jan 2014Fairfax, Virginia , UsProfessor of various courses including:IT357- Computer Crime, Forensics, and Auditing -
Interim Chief Information OfficerIntermex Wire Transfer, Llc Apr 2013 - Sep 2013Miami, Florida, UsServed as interim Chief Information Officer (CIO) for a financial services company. Formulated a road map to increase system security and obtained funding approval from Executive Team. Manage internal technical staff to execute road map. Streamlined technical operations and improved collaboration among team. Increased general information security awareness among Executive team and technology staff. Assisted in hiring permanent CIO and provided transition. -
Interim Chief Technology OfficerBroadvoice Oct 2011 - May 2012Northridge, Ca, UsServed as interim Chief Technology Officer (CTO) for a VoIP company ordered into Receivership by a federal judge. Secured access and control of systems from previous management pursuant to court order. Maintained technical operations and security to ensure successful sale of distressed company to new owners. -
Senior ManagerBroadband Office Nov 1999 - Apr 2001Led a product engineering group that worked with various technologies including IP networking, firewalls, LDAP, SNMP, load balancers, Storage Area Networks (SANs) and IP video. Directed multiple teams of senior engineers in developing various components of the company application service provider infrastructure.
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Manager, Emerging TechnologyUunet/Mci Worldcom Mar 1998 - Nov 1999UsModeled Internet backbone utilization and growth for planing and implementation forecasts at the height of traffic growth. Designed expansion OC-12 backbone trunks and future OC-48 trunks to increase network capacity. Created and managed a team of senior engineers to evaluate equipment and technology for future generations of company's global network infrastructure. This included the creation of a test lab that housed advanced devices including Terabit Switched Routers (TSR) and Dense Wavelength Division Multiplexers (DWDM). -
Network EngineerImake Consulting Nov 1994 - Mar 1998UsPerformed integration and acceptance testing of large scale digital video on demand systems for international and domestic clients using various network delivery technologies including Digital Subscriber Line (DSL), Hybrid Fiber Coax (HFC) and Fiber to the Home (FTTH). These systems ultimately became Verizon's FiOS and other similar platforms. Participated in integration and testing of development and commercial sites for Bell Atlantic, Nynex, and Pacific Bell’s wireless video delivery system. Designed and co-wrote a client-server customer care database application to support Bell Atlantic (Verizon) DirectTV offering. Managed a team of 8 developers in creating a customer care system.
David Sun, Cissp, Cce, Ence Skills
David Sun, Cissp, Cce, Ence Education Details
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Virginia TechElectrical Engineering -
Virginia TechElectrical Engineering
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Thomas Jefferson High School For Science And Technology
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Thomas Jefferson High School
Frequently Asked Questions about David Sun, Cissp, Cce, Ence
What company does David Sun, Cissp, Cce, Ence work for?
David Sun, Cissp, Cce, Ence works for Cohnreznick
What is David Sun, Cissp, Cce, Ence's role at the current company?
David Sun, Cissp, Cce, Ence's current role is Partner.
What is David Sun, Cissp, Cce, Ence's email address?
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What is David Sun, Cissp, Cce, Ence's direct phone number?
David Sun, Cissp, Cce, Ence's direct phone number is +170375*****
What schools did David Sun, Cissp, Cce, Ence attend?
David Sun, Cissp, Cce, Ence attended Virginia Tech, Virginia Tech, Thomas Jefferson High School For Science And Technology, Thomas Jefferson High School.
What skills is David Sun, Cissp, Cce, Ence known for?
David Sun, Cissp, Cce, Ence has skills like Security, Computer Forensics, Information Security, Computer Security, Integration, Networking, Litigation Support, Firewalls, Cloud Computing, Program Management, Forensic Analysis, Software Development.
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