White House AI Policy Team Loses Key Cyber Director Adviser

The White House is losing another senior technology policy official as it prepares to implement new AI security measures. Thomas Lind, head of policy at the Office of the National Cyber Director (ONCD) and senior adviser to National Cyber Director Sean Cairncross, plans to leave government to spend more time with family, according to sources familiar with the decision.

Lind's departure comes just days after the Trump administration released its long-delayed executive order on AI security last Tuesday. The timing adds to concerns about the administration's technical capacity as it moves to execute oversight plans for advanced AI models capable of identifying software vulnerabilities that could enable cyberattacks.

Why it matters

The exodus of experienced policy staff threatens the White House's ability to implement critical AI safeguards at a moment when frontier models from companies like Anthropic and OpenAI have demonstrated unprecedented capabilities to find security flaws in digital infrastructure. The ONCD faces a 60-day deadline to establish a voluntary safety-vetting system for new AI models, requiring deep technical expertise the office may now lack.

A pattern of departures

Lind is the latest in a series of exits from the White House tech policy team following the executive order's release. Alexandra Seymour, Lind's former deputy on policy, left last week. Sriram Krishnan, the White House's senior policy adviser for AI, plans to depart later this month. Additional officials in the cyber policy shop are reportedly considering leaving due to low morale, according to sources familiar with internal dynamics.

The departures are particularly significant given Lind's technical background. He left the NSA in April 2025 to join the ONCD as senior director for intelligence, later becoming an adviser to Cairncross in September before assuming the office's top policy role in April 2026—just as work on the AI executive order intensified.

Staffing and expertise gaps

Congress authorized the ONCD to employ up to 75 people when it created the office in 2021, but National Cyber Director Cairncross has staffed it with only about three dozen employees. Some administration officials have criticized Cairncross, a former lawyer and Republican National Committee executive who lacked cybersecurity experience before his August 2025 confirmation, for moving too slowly on AI concerns and failing to hire sufficient technical talent.

The office's chief of staff and deputy chief of staff also lack technology or cybersecurity backgrounds, according to POLITICO, which first reported these details.

The AI security challenge ahead

The White House accelerated its AI policy work in April after Anthropic announced a new model so proficient at finding infrastructure vulnerabilities that widespread release could enable criminals and state actors to launch coordinated cyberattacks. Both Anthropic and OpenAI have restricted their most advanced models to select tech organizations and security researchers while defenses are strengthened.

The executive order's centerpiece is a voluntary system requiring model developers to submit new AI systems for federal review 30 days before public release. The ONCD must help establish this vetting framework within 60 days—a timeline that now faces execution risks given the personnel changes.

A White House spokesperson praised Cairncross's leadership and said the ONCD is "actively" seeking qualified candidates. The office is working "hand-in-hand with the private sector and other federal agencies" to implement the president's AI priorities, according to the statement.