Executive record
Samir Sherif
Career profile: Samir Sherif on CISO Spotlights ↗
Samir Sherif was named Senior Vice President and Chief Information Security Officer at F5. The appointment was announced on January 22, 2024, per Business Wire.
Before the appointment: Chief Information Security Officer at Imperva, per the same source.
The newest appointment at F5 on the record is Chris Burger, Chief Information Security Officer, announced in the week of April 21, 2025.
1 tracked move on the Wire · Updated
Career timeline
Every move the record holds for Samir Sherif, newest first, with the earlier roles the announcements name.
· Appointment
Named Senior Vice President and Chief Information Security Officer at F5
Source: Business Wire (company announcement) ↗ · Move record
Before January 2024· Earlier role
Chief Information Security Officer at Imperva
Named in the announcement of the F5 appointment · Source: Business Wire (company announcement) ↗
The appointment
Announced January 22, 2024 · Source: Business Wire (company announcement) ↗ · Move record
F5 announced the appointment of Samir Sherif as Senior Vice President and Chief Information Security Officer. Sherif previously served as CISO at Absolute Software and Imperva, and held roles at Citigroup including Global Head of Application Security.
According to the release, Sherif will lead the security culture and enterprise cybersecurity strategy at F5 and evolve its resilience and security capabilities. The release says his remit also includes overseeing cybersecurity programs and standards for the products and services of F5 and showing customers and the wider industry the value of its security solutions. Computer Weekly quotes Sherif as saying his mission as CISO at F5 is to further strengthen the company's enterprise cybersecurity initiatives through its multicloud application security. SecurityWeek reports that Sherif succeeds Gail Coury as CISO at F5, and that Coury is retiring on March 1 after three years in charge of the company's enterprise security efforts.
SecurityWeek reports that Sherif spent 21-plus years at Citigroup, a career that culminated in the role of Global Head of Application Security. According to SecurityWeek, Imperva, where Sherif was previously CISO, was owned by Thales at the time of the announcement, while Crosspoint Capital acquired Absolute Software in 2023. The release says his work at Citigroup, Imperva and Absolute Software has given him experience helping organizations around the world with compliance, resilience and security.
SecurityWeek reports that F5, the company whose enterprise cybersecurity strategy Sherif will now direct, is based in Seattle. SecurityWeek describes F5, which is listed on NASDAQ under the symbol FFIV, as an application delivery and security firm. In its own description, the company says F5 is a security and multi-cloud application services company. The company says it partners with organizations to optimize and secure apps and APIs at the edge, in the cloud or on premises.
Sherif said in the release that F5 aims, by raising the bar on its security standards and culture, to help its customers build a more secure digital world.
The seat before and after
Who the record names in the same seat before and after Samir Sherif. Only what a dated record states.
F5
After
- Chris Burger: named Chief Information Security Officer, announced in the week of April 21, 2025 · record
The company: F5
- Sector
- Technology
- Region
- North America
- Company record
- Who runs security at F5: 2 confirmed moves on the record
- Annual report
- Cybersecurity section of the fiscal 2025 Form 10-K, filed November 25, 2025
- Board oversight
- Named in the filing: Risk Committee.
- Incident filings
- 1 cybersecurity incident disclosure under Form 8-K Item 1.05 on the record; the newest filed October 15, 2025 (filing). All incident filings
- Vendor directory
- F5 sells security products, filed under WAF and WAAP. What it sells
Appointed in the same period
Other security chiefs in Technology whose appointment was announced within 90 days of Samir Sherif's, nearest first. The Technology bench
Talha Tariq, Chief Information Officer and Chief Security Officer at HashiCorp
Kent Goodrow, Chief Information Security Officer at Systems Engineering
Igor Tsyganskiy, Chief Information Security Officer at Microsoft
Summer Craze Fowler, Chief Information Security Officer at Torc Robotics
Norm Laudermilch, Chief Information Security Officer at Maxar Technologies
Diana Lovati, Chief Information Security Officer at True Anomaly
Craig Davies, Chief Information Security Officer at Gathid
Record facts
- Moves on the record
- 1 confirmed move, each with its source
- On the record since
- September 30, 2026
Questions about Samir Sherif
- When did Samir Sherif become CISO of F5?
- The appointment was announced on January 22, 2024, per Business Wire. The record holds the announcement, not a start date.
- Who holds the seat at F5 now?
- The newest appointment at F5 on the record is Chris Burger, Chief Information Security Officer, announced in the week of April 21, 2025.
- Where did Samir Sherif work before F5?
- Before the appointment, Samir Sherif was Chief Information Security Officer at Imperva, according to the announcement (Business Wire).
Sources
- 1.Business Wire (company announcement) ↗: the appointment at F5, January 22, 2024
- 2.SEC EDGAR: Form 10-K, fiscal 2025 ↗: the company's cybersecurity disclosure
- 3.SEC EDGAR: Form 8-K, filed October 15, 2025 ↗: an Item 1.05 incident disclosure
- 4.CISO Spotlights career profile ↗: a fuller career profile on a sister site
This record begins with CISO Tribune's tracking in 2026.
Related guides
CISO Podcasts: The Shows That Interview Sitting Security Leaders
Four active podcasts interview sitting CISOs: CISO Series Podcast, Defense in Depth, The New CISO and Risky Business Features. Hosts, cadence, sponsors.
CISO, CSO, VP of Security, Head of Security: What the Titles Mean and What the Record Shows
A chief information security officer (CISO) owns information security. A chief security officer (CSO) usually adds physical security and investigations.
How to Become a CISO: Career Path, Experience and Certifications
There is no CISO degree and no single route to the seat. What the certification bodies, career guides and CISO Tribune's own record show about the path: typical prior roles, the certifications that actually come up, and how long it takes.