CISO Tribune

Executive record

William Wetherill

CISO Tribune executive record: William Wetherill, CISO at DefenseStorm

Career profile: William Wetherill on CISO Spotlights ↗

William Wetherill is Chief Information Security Officer at DefenseStorm. The appointment was announced on November 14, 2023, per Business Wire.

Before the appointment: CISO at DefenseStorm, per the same source.

The seat was verified again on October 24, 2026, per defensestorm.com.

1 tracked move on the Wire · Updated

Career timeline

Every move the record holds for William Wetherill, newest first, with the earlier roles the announcements name.

  1. · Appointment

    Named Chief Information Security Officer at DefenseStorm

    Source: Business Wire (company announcement) ↗ · Move record

  2. Before November 2023· Earlier role

    CISO at DefenseStorm

    Named in the announcement of the DefenseStorm appointment · Source: Business Wire (company announcement) ↗

The appointment

Announced November 14, 2023 · Source: Business Wire (company announcement) ↗ · Move record

DefenseStorm announced a leadership transition naming William Wetherill as its new Chief Information Security Officer, succeeding Robert Thibodeaux, who retired after nine years in the role. Wetherill previously led the company's Cyber Threat Surveillance Operations Team.

According to the release on Business Wire, Wetherill became the new CISO of DefenseStorm effective January 1st, 2023. The release also states that he has prior experience as a CISO and holds the certifications expected for the position. Wetherill says in the release that he intends to apply his expertise in incident response, risk management, strategic planning and cybersecurity program maturation.

DefenseStorm says Wetherill is a Certified Information Security Manager and a Certified Information Systems Security Professional. DefenseStorm says Wetherill has over 27 years of experience in IT, almost a third of it directly in cybersecurity. Before becoming CISO, he served as Director of Cybersecurity Operations at DefenseStorm, the leadership page says. DefenseStorm says Wetherill built and managed the Information Security Program at the University of North Carolina in Wilmington, where he was previously the Chief Information Security Officer.

According to the release, the company's GRID ACTIVE data engine is designed to give real-time access to, analysis of and action on critical threat data.

Business Wire reports that DefenseStorm completed a $15M Series C raise, which JAM FINTOP, whose limited partners include over 80 community and mid-size banks, led with $5M. The remaining $10M came from existing investors, bringing the company's total funding to $67M, according to the same release. According to the news page, DefenseStorm recently completed a Series C-1 raise, and existing investor partners including Live Oak Ventures, Curql and Georgian led the round.

The company: DefenseStorm

Company record
Who runs security at DefenseStorm: 1 confirmed move on the record
Vendor directory
DefenseStorm sells security products, filed under MDR and managed SOC. What it sells

Appointed in the same period

Other security chiefs in Cybersecurity Vendors whose appointment was announced within 90 days of William Wetherill's, nearest first (8 of 10). The Cybersecurity Vendors bench

Record facts

Time in the seat
3 years since the appointment was announced (November 14, 2023), as of November 2026
Moves on the record
1 confirmed move, each with its source
On the record since
September 30, 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 William Wetherill

Who is the CISO of DefenseStorm?
William Wetherill is Chief Information Security Officer at DefenseStorm. The appointment was announced on November 14, 2023, per Business Wire.
When did William Wetherill become CISO of DefenseStorm?
The appointment was announced on November 14, 2023, per Business Wire. The record holds the announcement, not a start date.
What was William Wetherill's role before this appointment?
Before the appointment, William Wetherill was CISO at DefenseStorm, according to the announcement (Business Wire).

Sources

  1. 1.Business Wire (company announcement) ↗: the appointment at DefenseStorm, November 14, 2023
  2. 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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