CISO Tribune

Executive record

Eric Hammersley

CISO Tribune executive record: Eric Hammersley, CISO at IREN Limited

Career profile: Eric Hammersley on CISO Spotlights ↗

Eric Hammersley is Chief Information Security Officer at IREN Limited. The appointment was announced on July 15, 2026, per GlobeNewswire.

1 tracked move on the Wire · Updated

Career timeline

Every move the record holds for Eric Hammersley, newest first, with the earlier roles the announcements name.

  1. · Appointment

    Named Chief Information Security Officer at IREN Limited

    Source: GlobeNewswire (company announcement) ↗ · Move record

The appointment

Announced July 15, 2026 · Source: GlobeNewswire (company announcement) ↗ · Move record

IREN Limited (NASDAQ: IREN) appointed Eric Hammersley, a U.S. Navy veteran, as Chief Information Security Officer as the company expands its AI cloud and data-center business.

AI-infrastructure operators are converging on the same conclusion as their hyperscaler customers: security leadership is a prerequisite for enterprise AI workloads, not an afterthought.

According to the announcement, IREN Limited named Eric Hammersley as Chief Information Security Officer on July 15, 2026. The announcement says he will lead IREN's security program across all three layers of its platform: data centers, compute and software.

The announcement says Hammersley has more than two decades of experience securing cloud platforms and critical infrastructure, including a prior role responsible for security governance, compliance and operational assurance across a company's software and SaaS products. His earlier roles include senior engineering positions across the U.S. federal government and defense sector, including as Chief Engineer supporting the Joint Chiefs of Staff (J6). The announcement describes him as a U.S. Navy veteran.

The announcement says the appointment follows the recent additions of Kambiz Aghili as Chief Product Officer and Michael Nudelman as Chief Development Officer.

The company: IREN Limited

Company record
Who runs security at IREN Limited: 1 confirmed move on the record
Annual report
Cybersecurity section of the fiscal 2026 Form 10-K, filed August 27, 2026
Board oversight
Named in the filing: Audit and Risk Committee.

Appointed in the same period

Other security chiefs in Technology whose appointment was announced within 90 days of Eric Hammersley's, nearest first (8 of 26). The Technology bench

Record facts

Time in the seat
4 months since the appointment was announced (July 15, 2026), as of November 2026
Moves on the record
1 confirmed move, each with its source
On the record since
August 1, 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 Eric Hammersley

Who is the CISO of IREN Limited?
Eric Hammersley is Chief Information Security Officer at IREN Limited. The appointment was announced on July 15, 2026, per GlobeNewswire.
When did Eric Hammersley become CISO of IREN Limited?
The appointment was announced on July 15, 2026, per GlobeNewswire. The record holds the announcement, not a start date.

Sources

  1. 1.GlobeNewswire (company announcement) ↗: the appointment at IREN Limited, July 15, 2026
  2. 2.SEC EDGAR: Form 10-K, fiscal 2026 ↗: 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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