When did Diana Kelley become CISO of Noma Security?

The appointment was announced in the week of August 4, 2025, per SecurityWeek Industry Moves. The record holds the announcement, not a start date.

Where did Diana Kelley work before Noma Security?

Before the appointment, Diana Kelley was CISO at Protect AI, according to the announcement (SecurityWeek Industry Moves).

Executive record

Diana Kelley

Career profile: Diana Kelley on CISO Spotlights ↗

Diana Kelley is Chief Information Security Officer (CISO) at Noma Security. The appointment was announced in the week of August 4, 2025, per SecurityWeek Industry Moves.

Before the appointment: CISO at Protect AI, per the same source.

1 tracked move on the Wire · Updated November 7, 2026

Career timeline

Every move the record holds for Diana Kelley, newest first, with the earlier roles the announcements name.

week of August 4, 2025· Appointment
Named Chief Information Security Officer (CISO) at Noma Security
Source: SecurityWeek Industry Moves (week of 2025-08-04) ↗ · Move record
Before August 2025· Earlier role
CISO at Protect AI
Named in the announcement of the Noma Security appointment · Source: SecurityWeek Industry Moves (week of 2025-08-04) ↗

The company: Noma Security

Sector: Cybersecurity Vendors
Region: North America
Company record: Who runs security at Noma Security: 1 confirmed move on the record
Vendor directory: Noma Security sells security products, filed under AI model and agent security. What it sells

In their own words

What Diana Kelley has posted and written in public while in the seat, each described in our words with a link to the original. A post loads from LinkedIn or X only when you choose Show post. All voices

Our take

The CISO of Noma Security, in the seat since August 2025, previously held the same role at Protect AI. The opening of the post sets two threads side by side: a vendor's agreements to buy a pair of AI security companies, and its announcement of a control meant to halt AI systems on demand. Consolidation like this matters to buyers as much as to sellers. Any tool in an AI security stack may soon sit under a new owner, so contracts should cover change of control, data handling after a deal and roadmap commitments. A stop mechanism for AI agents is a sound idea, but it only works if the organisation has already decided who may pull it, which workloads it covers and what happens to dependent processes when it is used. We would treat it as an incident-response question first and a product feature second, and rehearse it before relying on it.

Elsewhere

Public profiles we matched to Diana Kelley by exact name and the company on our record. Links only; we do not copy from them.

LinkedIn ↗

Appointed in the same period

Other security chiefs in Cybersecurity Vendors whose appointment was announced within 90 days of Diana Kelley's, nearest first (8 of 9). The Cybersecurity Vendors bench

week of July 28, 2025
Quincy Castro, Chief Information Security Officer (CISO) at Chainguard
week of August 18, 2025
Olivia Brännlund, CISO at Outpost24
August 19, 2025
Aman Sirohi, Chief Information Security Officer at Cyberhaven
July 8, 2025
Dale Hoak, Chief Information Security Officer at RegScale
week of September 1, 2025
Leslie Nielsen, Chief Information Security Officer at Mimecast
week of June 9, 2025
Rinki Sethi, Chief Security Officer (CSO) at Upwind
week of October 13, 2025
Raj Umadas, Chief Information Security Officer (CISO) at RAD Security
May 23, 2025
Lane Sullivan, Chief Information Security and Strategy Officer at Concentric AI

Record facts

Time in the seat: About 1 year 3 months since the appointment was announced (week of August 4, 2025), as of November 2026
Moves on the record: 1 confirmed move, each with its source
On the record since: September 26, 2026
Cybersecurity Vendors in 2026: 25 security-leadership appointments announced in the sector on the record

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 Diana Kelley

Who is the CISO of Noma Security?: Diana Kelley is Chief Information Security Officer (CISO) at Noma Security. The appointment was announced in the week of August 4, 2025, per SecurityWeek Industry Moves.
When did Diana Kelley become CISO of Noma Security?: The appointment was announced in the week of August 4, 2025, per SecurityWeek Industry Moves. The record holds the announcement, not a start date.
Where did Diana Kelley work before Noma Security?: Before the appointment, Diana Kelley was CISO at Protect AI, according to the announcement (SecurityWeek Industry Moves).

Sources

1.SecurityWeek Industry Moves (week of 2025-08-04) ↗: the appointment at Noma Security, week of August 4, 2025
2.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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