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Mark Hillick Email & Phone Number

CISO | Public Speaker | Advisor | Author at Brex
Location: United States 16 work roles 2 schools
1 work email found @brex.com 1 phone found area 424 LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 1 phone

Work email m****@brex.com
Direct phone (424) ***-****
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Current company
Role
CISO | Public Speaker | Advisor | Author
Location
United States

Who is Mark Hillick? Overview

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Quick answer

Mark Hillick is listed as CISO | Public Speaker | Advisor | Author at Brex, based in United States. AeroLeads shows a work email signal at brex.com, phone signal with area code 424, and a matched LinkedIn profile for Mark Hillick.

Mark Hillick previously worked as CISO at Brex and Head of Trust at Brex. Mark Hillick holds Msci, Maths from Queen'S University Belfast.

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Email format at Brex

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{first_initial}{last}@brex.com
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Profile bio

About Mark Hillick

My leadership philosophy is simple: build resilient systems, cultivate strong teams, and collaborate to make security a shared responsibility. I am passionate about building robust security programs that drive trust, resilience, and innovation. My approach centers on collaboration and proactive partnerships across the business, ensuring security is not just a function but a strategic enabler.With extensive experience in leading and scaling security teams, I prioritize fostering a culture of technical excellence and continuous growth. I believe in empowering my teams to stay ahead of evolving threats while aligning security objectives with organizational goals. By combining technical depth with a business-focused mindset, I ensure security programs deliver tangible value to stakeholders.My teams have:- built security directly into the development and launch lifecycle at multiple companies - successfully released multiple open-source projects to the security community- presented at industry-leading conferences such as BSides SF, AWS Re:Invent, BruCon, AppSec Europe etc- integrated security directly into the launch cycle of games such as TFT, LoR, Wild Rift, and Valorant- directly developed features in the core company products

Listed skills include Security, Firewalls, Dns, Networking, and 45 others.

Current workplace

Mark Hillick's current company

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Brex
Brex
CISO | Public Speaker | Advisor | Author
AeroLeads page
16 roles

Mark Hillick work experience

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

Ciso

Current

San Francisco, California, Us

Jan 2024 - Present

Head Of Trust

San Francisco, California, Us

I lead the Trust org at Brex, which consists of several Security engineering teams and GRC.- Security @ Brex, which not only consists of the traditional infrastructure/application/corporate security teams, but also the software engineering teams responsible for developing security features in the Brex Product. We seek to inspire audience trust by providing a secure environment for Brex customers and staff, regardless of location, where the default way is the easiest and most secure.- GRC matures Brex’s Trust posture, maintains global compliance, optimizes security practices, and mitigates enterprise risk, thus instilling trust with our customers.Overall, the Security org ensures Brex is able to securely scale and grow, while still protecting customers and their data.

Jul 2023 - Jan 2024

Head Of Security

San Francisco, California, Us

I led all of Security @ Brex, which not only consists of the traditional infrastructure/application/corporate security teams, but also the software engineering teams responsible for developing security features in the Brex Product. We seek to inspire audience trust by providing a secure environment for Brex customers and staff, regardless of location, where the default way is the easiest and most secure. Overall, the Security org ensures Brex is able to securely scale and grow, while still protecting customers and their data.

May 2021 - Aug 2023

Angel Investor

Current
Self-Employed

ConductorOne, Hurree, MoveTru, OsoHQ, Phoenix Security, Resourcely, Vaultree,

Jul 2020 - Present

Advisor

Los Angeles, Us

Advisor on the design, architecture and implementation of an Information Security & Privacy Program

Feb 2023 - Jul 2023

Senior Director Of Security & It

Playa Vista, California, Us

Senior Director - Head of Security & ITKey Results: - Developed a Security & IT program from scratch - Created a foundational data privacy policy for customer data- Owned Identity Access Management for all internal and external Subspace services - Embedded security into the engineering org and their dev workflows

Aug 2020 - Apr 2021

Director & Head Of Security

Los Angeles, Ca, Us

I owned the vision and strategy for InfoSec @ Riot, leading Product & Tech for the Security department @ Riot Games.I led 55 people across:- CorpSec, AppSec, Platform Security, Anti-Cheat, Risk & Review, Data Privacy & Security OperationsKey Results: - Implemented a security program that included starting an AppSec team, vulnerability management, security review process and bug bounty program from scratch- Brought the security team fully into the Engineering organisation(e.g Cloud Inquisitor @ ReInvent 2017; KeyConjurer @ Re:Inforce 2019)- Developed and integrated a security checklist into the full game lifecycle-Converted security policies into pseudocode within the internal RFC process- Led the Anti-Cheat team to develop Packman and Vanguard, which ensure game integrity and security, for League of Legends and ValorantResponsibilities included:- Building and improving the Information Security program at Riot through setting the vision and being accountable for the execution of said vision- Socializing security and building security into processes through the org- Close collaboration with product to integrate security frictionlessly into Riot's products and games throughout the lifecycle- Leading and mentoring Rioters across the org

Sep 2018 - Sep 2020

Head Of Player Security

Los Angeles, Ca, Us

I was the Head of Player Security @ Riot, which meant I was accountable for player trust and the player experience being secure. Player Security consisted of Platform & Cloud Security, as well as Anti-Cheat (covering the integrity of all Riot's games).I worked across many areas ranging from our game infrastructure to some magical stuff in the cloud and onto Layer 8 (as a people manager) with some DFiR thrown in for good measure.

Oct 2015 - Oct 2018

Head Of Infosec In Eu

Los Angeles, Ca, Us

As the first security hire in Europe and an Engineering Manager in Dublin, I had the privilege of building an InfoSec team from scratch.Those team members went on to lead AppSec, InfraSec, Corporate Security and Bug Bounty for Riot worldwid, from remote offices.Wearing many hats is typical at Riot, such that most of my time is as a Product Owner for a bunch of stuff within InfoSec @ Riot ranging from corporate security to network infrastructure and some magical stuff in the cloud. This role involved working with the team to come up with a roadmap, focusing on the biggest impact for our players,and subsequently driving together towards execution.I led a strike force (containing folks from multiple teams) to combat the DDOS challenges that League of Legends was facing from frustrated players and groups such as Derp Trolling and Lizard Squad. This work ultimately resulted in the creation of Riot Direct.

May 2013 - Jul 2016

Founder Of Hackeire

In 2009, I created and designed HackEire, Ireland's first Ethical Hacking contest. We built, organised and successfully held HackEire 2009 in Dublin, Ireland, at IrissCon. The contest was free to enter and was clearly a great success.HackEire 2010 was held at the second #IRISSCon conference, on November 19th 2010, in Dublin. This year there were even more entries and the HackEire network was developed further such that the game itself was clearly more complex and varied. Consequently, the competitors faced challenges that they were not necessary familiar with and undoubtedly developed their skills further!HackEire 2011 took the game to another level :)

Jul 2009 - Sep 2013

Senior Engineer

New York, Ny, Us

As part of the new 10gen EMEA Tech Support team, I - work on MongoDB- resolve issues for customers worldwide- support those same customers through pre, post and during implementation- help grow MongoDB in the community through presentations, site visits, conferences and getting out there- do some packaging/build work- have become the "security guy", which has been awesome :)See the following links for more precise details:- http://blog.markofu.com/2012/07/being-support-engineer-10gen-part-1.html- http://blog.markofu.com/2012/10/being-support-engineer-10gen-part-2.html

May 2012 - May 2013

Principal Networking Technical Relationship Manager & Emea Team Lead

Fort Lauderdale, Fl, Us

I led the EMEA Networking TRM team, mentoring younger team members and essentially I sort out the 'crap' for the 'big' Citrix Networking customers in EMEA & NA. I The job was very much technical, with problems covering all layers from 2 to 7, alongside a good dose of relationship management. As I always ensured that the needs of my customers are looked after, my customers come to me also for all pre-sales enquiries and POCs :)From a technical perspective, it was a "deep dive" into TCP (buffering, window size/scaling, options, congestion/flow control), HTTP (headers, latency, caching, compression, Apache, IIS, Layer 7 security), SSL (Offload, TPS, VPN), SQL (MySQL & MS), Load Balancing, dump analysis (gdb), system & flow analysis (packet captures, log files & reporting tools), WAN Optimisation, Security and a bit of scripting (perl, awk, NS Regex Engine & bash)....blah, blah,blah! I am the single point of contact for all technical issues for my customers.On the relationship side, I ensured that my Citrix Networking TRM customers were happy, with their issues being quickly resolved and receiving the appropriate level of attention within Citrix. With me as their TRM, my customers remained as Citrix customers and in all cases, bought more product.My customers were typically cutting edge and involved in our pre-beta programmes, meaning that I got to play with Netscaler technology long before public release. Not only did I learn from playing with bleeding-edge technology but I established a very constructive relationship with Engineering and Product Management such that I had input into new features :)Additionally, I regularly wrote KB articles for Citrix on many technical issues and regularly gave technical webinars on various technical topics such as caching, load-balancing, security and nuances in the product.

Jan 2010 - May 2012

Volunteer Incident Handler

Iriss.Ie

Founding MemberVolunteer Incident Handler at Ireland's first CSIRT.Responding to security incidents experienced by Irish SMEs and alerting those companies to new vulnerabilities.Founding member also of the accompanying security conference.

Oct 2008 - May 2011

Team Lead Of Internet Infrastructure & Security

Aib

Molesworth Street , Dublin 2, Ie

Team Lead for the AIB Internet Infrastructure Security team.I designed, built, managed and secured the AIB Internet Infrastructure from which AIB provides Internet Services to internal and external customers.

Feb 2008 - Jan 2010

Internet Infrastructure Security Engineer

Aib

Molesworth Street , Dublin 2, Ie

Progressed from graduate to senior SE at AIB, where I am esponsible for the design, build, implementation,support and security of the AIB Internet Infrastructure.

Sep 2000 - Feb 2008
2 education records

Mark Hillick education

Msci, Maths

Queen'S University Belfast

Gse, Computer And Information Systems Security/Information Assurance

Sans
FAQ

Frequently asked questions about Mark Hillick

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

What company does Mark Hillick work for?

Mark Hillick works for Brex.

What is Mark Hillick's role at Brex?

Mark Hillick is listed as CISO | Public Speaker | Advisor | Author at Brex.

What is Mark Hillick's email address?

AeroLeads has found 1 work email signal at @brex.com for Mark Hillick at Brex.

What is Mark Hillick's phone number?

AeroLeads has found 1 phone signal(s) with area code 424 for Mark Hillick at Brex.

Where is Mark Hillick based?

Mark Hillick is based in United States while working with Brex.

What companies has Mark Hillick worked for?

Mark Hillick has worked for Brex, Aviso Ventures, Self-Employed, Pragma, and Subspace.

How can I contact Mark Hillick?

You can use AeroLeads to view verified contact signals for Mark Hillick at Brex, including work email, phone, and LinkedIn data when available.

What schools did Mark Hillick attend?

Mark Hillick holds Msci, Maths from Queen'S University Belfast.

What skills is Mark Hillick known for?

Mark Hillick is listed with skills including Security, Firewalls, Dns, Networking, Information Security, Apache, Tcp/Ip, and Ids.

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