AREA OF PRACTICE
Guillermo Christensen advises clients on a range of enterprise risks involving the security of information systems and data ("cybersecurity") and insider threats to corporate assets and systems. He undertakes sensitive internal investigations for clients around allegations of foreign corruption, and violations of export controls and economic sanctions. In the national security law practice, he represents clients involved in securing approvals from the US Government for acquisitions of US businesses by foreign buyers. To all these areas, Guillermo brings a wealth of international business and government intelligence experiences to his practice, providing his clients with unique perspectives into troubleshooting complex and unusual problems.
Guillermo is a former CIA intelligence officer and a former diplomat with the U.S. State Department. He most recently served in a policy role as the Science and Technology Advisor to the U.S. Mission to the Organization for Economic Cooperation and Development (OECD) in Paris, where he led multi-stakeholder policy reviews of encryption, cybersecurity and cross-border data flows. From 2001-2002 he was the CIA Fellow to the Council on Foreign Relations in New York, an intelligence community position designated for officers on the cusp of the most senior responsibilities. From 2002-2004, Guillermo was on loan from the CIA to the FBI and to a national level counterterrorism intelligence fusion center to help improve intelligence collection and analysis of emerging threats.
As an attorney in private practice, Guillermo has worked on a variety of complex international investigations—including corruption and high-technology exports—and has represented clients in national security law matters, including vetting of sensitive transactions through the CFIUS process. He has experience with clients across the financial, technology, energy and defense sectors. In addition to his extensive international experience in the government, in private practice Guillermo has worked with clients in the Middle East, Latin America, Asia, Europe and Africa.
In the cybersecurity field, Guillermo has been a thought leader in discussions around intelligence collection, counter-measures, new business opportunities for emerging companies, and advising company boards and management. His focus has been on counseling clients in incorporating information security practices – based on his experience in the intelligence community – into their enterprise risk management and when breaches or insider threats are suspected, investigating and remediating the event. Drawing on this background, he recently helped draft the terms of reference for a Sedona Conference Working Group 11 project on Law Firms and Data Security and is currently involved in the next phase of that project.
Guillermo is active with several prominent organizations including as a life member of the Council on Foreign Relations. Born in Argentina, Guillermo is fluent in Spanish and has working knowledge of other languages.
Corporate Investigations and FCPA Compliance
Regulatory and National Security Law
International Arbitration and Complex Business Litigation
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