CISO Tribune

Executive record

Leslie Kershaw

CISO Tribune executive record: Leslie Kershaw, CISO at IonQ

Career profile: Leslie Kershaw on CISO Spotlights ↗

Leslie Kershaw is Chief Information Security Officer at IonQ. The appointment was announced on January 14, 2026, per IonQ.

Before the appointment: a security leadership role at IonQ Capella, per the same source.

1 tracked move on the Wire · Updated

Career timeline

Every move the record holds for Leslie Kershaw, newest first, with the earlier roles the announcements name.

  1. · Appointment

    Named Chief Information Security Officer at IonQ

    Source: IonQ (company announcement) ↗ · Move record

  2. Before January 2026· Earlier role

    Security leadership role at IonQ Capella

    Named in the announcement of the IonQ appointment · Source: IonQ (company announcement) ↗

The appointment

Announced January 14, 2026 · Source: IonQ (company announcement) ↗ · Move record

IonQ announced that Leslie Kershaw, previously with its IonQ Capella unit, will advance into a newly expanded role as Chief Information Security Officer, reporting to incoming Chief Information Officer Katie Arrington. The appointment was announced alongside Arrington's hire from the Department of War.

A quantum-computing company elevating security to a corporate CISO post reporting to a former Pentagon technology official signals how closely IonQ is tying its security posture to government and defense business.

According to the company, Kershaw is responsible for meeting commercial and federal cybersecurity requirements and for managing enterprise physical and cyber security. IonQ says her remit also includes ensuring that security keeps pace as the company expands commercially.

IonQ says Kershaw has nearly two decades of cyber leadership, and that she served the U.S. Space Force as Cyber Technical Director for Space DELTA 6. In the Space DELTA 6 role, according to the company, she guided operational readiness and cyber architecture for teams in 13 globally dispersed locations.

IonQ describes itself as a quantum platform company delivering solutions for networking, sensing, security and quantum computing. IonQ says it is headquartered in College Park, Maryland, and has more than 1,300 employees, with operations in places including Tennessee, California, the United Kingdom, Switzerland and South Korea. According to the company, its customers and partners include NVIDIA, AstraZeneca and Amazon Web Services. The company says it achieved 99.99% two-qubit gate fidelity in 2025.

The company: IonQ

Company record
Who runs security at IonQ: 1 confirmed move on the record
Annual report
Cybersecurity section of the fiscal 2025 Form 10-K, filed February 25, 2026
Reporting line
The filing describes the role that runs security as Chief Information Security Officer, reporting to the Chief Information Officer.
Board oversight
Named in the filing: Audit Committee.

Appointed in the same period

Other security chiefs in Technology whose appointment was announced within 90 days of Leslie Kershaw's, nearest first (8 of 12). The Technology bench

Record facts

Time in the seat
10 months since the appointment was announced (January 14, 2026), as of November 2026
Moves on the record
1 confirmed move, each with its source
On the record since
September 25, 2026

How these are counted. Time in the seat: Counted in whole months from the announcement of the appointment, the date the record holds; announcements rarely give a start date.

Questions about Leslie Kershaw

Who is the CISO of IonQ?
Leslie Kershaw is Chief Information Security Officer at IonQ. The appointment was announced on January 14, 2026, per IonQ.
When did Leslie Kershaw become CISO of IonQ?
The appointment was announced on January 14, 2026, per IonQ. The record holds the announcement, not a start date.
Where did Leslie Kershaw work before IonQ?
Before the appointment, Leslie Kershaw was in a security leadership role at IonQ Capella, according to the announcement (IonQ).
Who does the head of security at IonQ report to?
In its fiscal 2025 annual report (Form 10-K, filed February 25, 2026), IonQ describes the role that runs security as Chief Information Security Officer, reporting to the Chief Information Officer.

Sources

  1. 1.IonQ (company announcement) ↗: the appointment at IonQ, January 14, 2026
  2. 2.SEC EDGAR: Form 10-K, fiscal 2025 ↗: the company's cybersecurity disclosure
  3. 3.CISO Spotlights career profile ↗: a fuller career profile on a sister site

This record begins with CISO Tribune's tracking in 2026.

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