Biden Deputy AG Lisa Monaco Referred to DOJ over Alleged Microsoft Cover-Up

The Biden Justice Department’s former second-in-command, Lisa Monaco, is facing a referral to the Department of Justice over allegations that she buried investigations into Microsoft’s cybersecurity failures before landing a top job at the tech giant, according to a letter from the American Accountability Foundation.

Monaco, who served as Deputy Attorney General under former Attorney General Merrick Garland, joined Microsoft in May 2025 as President of Global Affairs just months after leaving government. Her hiring drew immediate criticism from President Donald Trump, who blasted Monaco in a Truth Social post last September.

“Corrupt and Totally Trump Deranged Lisa Monaco,” Trump wrote, “was a senior National Security aide under Barack Hussein Obama, and a Lawfare and Weaponization obsessed Deputy Attorney General under Crooked Joe Biden.” Trump added that Monaco’s access to “Highly Sensitive Information” at Microsoft was “unacceptable” given the company’s extensive government contracts.

Trump further alleged that Monaco had been stripped of security clearances and barred from federal properties, declaring: “It is my opinion that Microsoft should immediately terminate the employment of Lisa Monaco.”

The DOJ referral from the American Accountability Foundation suggests Trump’s concerns may extend beyond politics into national security and potential corruption.

According to the letter, Microsoft suffered at least five major cyber intrusions between 2019 and 2023 involving Russian intelligence services, Chinese state-sponsored hackers, and Russian cybercriminals. The breaches were described as “among the most damaging series of breaches of U.S. government information systems in American history.”

Despite those incidents, the Biden administration never brought a major enforcement action against Microsoft under the administration’s own cybersecurity crackdown.

The American Accountability Foundation noted:

Lisa Monaco served as Deputy Attorney General from April 2021 through January 2025. In October 2021, she announced the Civil Cyber-Fraud Initiative, which was designed to use the False Claims Act against contractors who knowingly misrepresent cybersecurity risks. During her tenure, the Department brought such actions against companies whose conduct, on the public record, appears far less serious than the conduct attributed to Microsoft in the same period, including against a medical contractor, a defense contractor, a telecommunications provider, and a university. No such action was ever brought against Microsoft. In May 2025, approximately four months after leaving the Department, Ms. Monaco joined Microsoft as President of Global Affairs.

The referral also points to a growing web of former Biden administration cybersecurity officials who later joined Microsoft or firms tied to the company.

John P. Carlin, Monaco’s former deputy at DOJ, served on the Cyber Safety Review Board before departing for Paul, Weiss, Rifkind, Wharton & Garrison LLP, where he now chairs the firm’s cybersecurity and national security practices. In February 2024, Carlin co-authored an amicus brief in SEC v. SolarWinds Corp. that critics argue contradicted the very enforcement theory behind Monaco’s Civil Cyber-Fraud Initiative.

Breitbart News previously reported that Mark Pomerantz, a central figure in Democrats’ lawfare campaign against President Trump, also joined Paul Weiss after leaving Alvin Bragg’s office.

Other officials tied to Microsoft investigations also moved into lucrative private-sector positions connected to the company.

Bryan A. Vorndran, the FBI’s representative on the Cyber Safety Review Board, became Microsoft’s Deputy Chief Information Security Officer roughly one month after Monaco joined the company. Jerry L. Davis, another board member, later became a Microsoft Chief Security Advisor.

The letter also raises concerns about Melinda Rogers, formerly Deputy Chief Information Officer at the Department of Justice, who joined Microsoft at the same time as Monaco.

According to the report:

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