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Leadership Change at a Critical Moment

Meta has named Curtis Joseph Mahoney, a longtime Microsoft legal executive and former U.S. trade official, as its new chief legal officer. The appointment comes as the social media and technology giant navigates intensifying legal, regulatory, and political challenges across the United States and abroad.

Mahoney will succeed Jennifer Newstead, Meta’s current top lawyer, who announced in December that she will leave the company to become Apple’s general counsel in March. The transition places a seasoned regulatory and trade expert at the helm of Meta’s legal strategy during a period of heightened scrutiny.

Deep Legal and Policy Experience

Before joining Meta, Mahoney served at Microsoft as a corporate vice president and general counsel overseeing product, services, and go-to-market legal operations. He joined Microsoft in 2021 as deputy general counsel, where his work centered on global trade policy and the company’s Azure cloud business.

In 2025, Mahoney was elevated to general counsel, leading teams of lawyers, paralegals, and legal professionals supporting Microsoft’s engineering, sales, and marketing divisions. During his tenure, he regularly represented the company before U.S. lawmakers and regulators, including testifying before a House Ways and Means Subcommittee on Trade regarding Microsoft’s initiatives in Africa and emerging markets.

Earlier in his career, Mahoney served as a deputy U.S. trade representative during President Donald Trump’s first term, giving him firsthand experience in international trade negotiations, tariffs, and regulatory enforcement.

Meta’s Legal Pressures Continue to Mount

Mahoney joins Meta at a time when the company is facing a growing number of lawsuits and investigations, particularly related to child safety and platform accountability. Among the most prominent is an ongoing case in New Mexico, where the state’s attorney general has accused Meta of failing to adequately protect minors from sexual exploitation and human trafficking on platforms such as Facebook and Instagram.

Beyond child safety, Meta continues to contend with antitrust scrutiny, data privacy regulation, and evolving rules governing artificial intelligence and digital advertising in the U.S., Europe, and other major markets. The chief legal officer role is expected to play a central part in shaping how the company responds to these challenges while advancing its long-term product roadmap.

Zuckerberg Signals Confidence in the Appointment

Meta CEO Mark Zuckerberg praised Mahoney’s background, emphasizing his combination of legal expertise and technology insight.

He described Mahoney as bringing world-class legal leadership, a strong understanding of frontier technologies like artificial intelligence, and deep familiarity with the global regulatory environment confronting large technology platforms.

The appointment also reflects Meta’s ongoing effort to strengthen its legal and policy leadership as AI development, platform safety, and cross-border regulation become increasingly intertwined.

A Well-Connected Legal Strategist

At Microsoft, Mahoney reported to Brad Smith, the company’s vice chair and president, who is widely regarded as one of the most influential legal and policy voices in the technology sector. The relationship underscores Mahoney’s exposure to high-level decision-making at the intersection of law, government, and technology.

Industry observers have noted that Zuckerberg previously sought guidance from Smith following Meta’s Cambridge Analytica data privacy scandal, highlighting the strategic value of leaders with experience managing public trust crises and regulatory backlash.

Looking Ahead

In a statement, Mahoney said he is eager to join Meta as it pushes forward in artificial intelligence and global connectivity, while acknowledging the challenges that come with operating one of the world’s largest digital platforms.

His appointment signals Meta’s intent to bring seasoned regulatory judgment and trade expertise into its executive ranks at a time when legal strategy is increasingly central to business performance.

Meta did not disclose details about Mahoney’s start date or compensation, and Microsoft declined to comment on succession planning following his departure.