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John Sherman Email & Phone Number

Senior Director Cybersecurity at Markel
Location: Fredericksburg, Virginia, United States 7 work roles 2 schools
1 work email found @markel.com 4 phones found area 804 and 800 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 4 phones

Work email j****@markel.com
Direct phone (804) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Senior Director Cybersecurity
Location
Fredericksburg, Virginia, United States

Who is John Sherman? Overview

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Quick answer

John Sherman is listed as Senior Director Cybersecurity at Markel, based in Fredericksburg, Virginia, United States. AeroLeads shows a work email signal at markel.com, phone signal with area code 804, 800, and a matched LinkedIn profile for John Sherman.

John Sherman previously worked as Director Cyber Technology Engineering at Markel and Manager - Security Engineering at Markel. John Sherman holds Information Technology Security from Western Governors University.

Company email context

Email format at Markel

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{first}.{last}@markel.com
89% confidence

AeroLeads found 1 current-domain work email signal for John Sherman. Compare company email patterns before reaching out.

Profile bio

About John Sherman

I am a dedicated Security Specialist with over 10 years of experience. I have a passion for solving complex problems and possess the ability to quickly learn and master new technologies.

Listed skills include Security, Windows 7, Active Directory, Technical Support, and 49 others.

Current workplace

John Sherman's current company

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Markel
Markel
Senior Director Cybersecurity
Website
AeroLeads page
7 roles

John Sherman work experience

A career timeline built from the work history available for this profile.

Senior Director Cybersecurity

Fredericksburg, VA, US

Director Cyber Technology Engineering

Glen Allen, Virginia, US

Manager - Security Engineering

Glen Allen, Virginia, US

- Manage a global team of security engineers that support the security suite of tools for the enterprise which includes EDR, SIEM, DLP, PAM, Vulnerability management, Cloud security, Email security, Web Gateway, Identity Protection, Firewall security, and other technical needs for the security department.- Hire exceptional individuals, establish.

Oct 2020 - Sep 2023

Senior Security Engineer

Glen Allen, Virginia, US

- Provide architectural oversight, direction, and effective implementation for global security solutions.- Serve as a subject matter expert (SME) for a variety of security tools to include design, implementation, operation and maintenance of security tools and solutions.- Security SME for ongoing support of Azure and O365 solutions to include; Azure.

Jul 2018 - Oct 2020

Senior Information Security Analyst

Glen Allen, Virginia, US

- Security project lead for proof of concept and security technology implementations.- Security SME for enterprise next-gen firewalls to include; policy and rule reviews, policy and hardening recommendations, and URL filtering management.- Lead for patch rating and vulnerability management.- Security SME responsible for the management of the enterprise EDR.

Jul 2017 - Jul 2018

Senior Information Security Analyst

Richmond, Virginia, US

- Manage the enterprise intrusion detection system to analyze traffic for network security incidents- Administer the company spam firewall and web filter appliances- Security project lead for proof of concept and implementation of a security information event management system(SIEM), denial of service(DoS) mitigation solution, mobile device.

May 2015 - Jul 2017

It Security Analyst

Fredericksburg, VA, US

- Manage the University anti-virus solution installed on 2100 endpoints. Duties include creating policies & deployment packages, monitoring virus activity, and creating reports- Implemented a data loss prevention solution to prevent the loss of personally identifiable information. Manage scans for SharePoint, Exchange, file servers, endpoints, and public.

Mar 2012 - May 2014
Team & coworkers

Colleagues at Markel

Other employees you can reach at markel.com. View company contacts →

2 education records

John Sherman education

Information Technology Security

Western Governors University

Computer Science

Bloomsburg University Of Pennsylvania
FAQ

Frequently asked questions about John Sherman

Quick answers generated from the profile data available on this page.

What company does John Sherman work for?

John Sherman works for Markel.

What is John Sherman's role at Markel?

John Sherman is listed as Senior Director Cybersecurity at Markel.

What is John Sherman's email address?

AeroLeads has found 1 work email signal at @markel.com for John Sherman at Markel.

What is John Sherman's phone number?

AeroLeads has found 4 phone signal(s) with area code 804, 800 for John Sherman at Markel.

Where is John Sherman based?

John Sherman is based in Fredericksburg, Virginia, United States while working with Markel.

What companies has John Sherman worked for?

John Sherman has worked for Markel, Browngreer Plc, and University Of Mary Washington.

Who are John Sherman's colleagues at Markel?

John Sherman's colleagues at Markel include Louise Hitchman, Oliver Beever Cert Cii, Nick Jones, Maheen Khan, and Charlotte Harrison.

How can I contact John Sherman?

You can use AeroLeads to view verified contact signals for John Sherman at Markel, including work email, phone, and LinkedIn data when available.

What schools did John Sherman attend?

John Sherman holds Information Technology Security from Western Governors University.

What skills is John Sherman known for?

John Sherman is listed with skills including Security, Windows 7, Active Directory, Technical Support, Networking, Troubleshooting, Operating Systems, and Windows Server.

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