10 Mars security leaders
Matthew Pecorelli, Deputy Chief Information Security Officer at Mars, is one of ten Mars security leaders listed here, alongside directors for security architecture, information security risk and governance, cyber threat and vulnerability, assurance and compliance, and OT security. A reader can learn how security leaders work at Mars from people who have held the role.
Professionals to explore
Frank Polky
LinkedInExperience: Director OT Security · Mars
Frank Polky has been Director OT Security at Mars since December 2019, based in the Greater Bremen Area. At Mars, Frank Polky was also Senior Segment Engineer Controls & IT from March 2006 to December 2019 and worked in Controls and Automation from September 1995 to March 2006.
Gregory Poniatowski
LinkedInExperience: Cyber Threat and Vulnerability, Director · Mars
Gregory Poniatowski has been Cyber Threat and Vulnerability, Director at Mars since September 2022. At Mars, Gregory Poniatowski was also Cyber Threat and Vulnerability, Sr. Manager from January 2021 to September 2022 and Area Leader - Information Security from January 2014 to January 2021.
Jeff Sabella
LinkedInExperience: Information Security, Director - Risk Strategy & Governance · Mars
Jeff Sabella has been Information Security, Director - Risk Strategy & Governance at Mars since January 2017 and was Business Partnership, Manager - Supply Chain at Mars from October 2013 to December 2016. Jeff Sabella was IT Senior Manager, Enterprise Architect at Dart Container from April 2011 to October 2013.
John G.
LinkedInExperience: Senior Director, Security Architecture & Engineering · Mars
John G. has been Senior Director, Security Architecture & Engineering at Mars since December 2025. John G. was Senior Director, Security Architecture & Engineering at Kellanova from September 2025 to January 2026 and Director of Cyber Security Operations - Global Threat Management at Kellanova from October 2023 to September 2025.
Julia Kagan
LinkedInExperience: Director, Global Information Security Risk and Governance · Mars
Julia Kagan has been Director, Global Information Security Risk and Governance at Mars since December 2025 and has also held the title Senior Risk Manager, Global Information Security at Mars since March 2019. Julia Kagan was Risk and Controls Manager, Commercial Bank at JPMorganChase from March 2014 to March 2019.
Kathleen Carpenter
LinkedInExperience: Director Information Security and Risk Management · Mars
Kathleen Carpenter has been Director Information Security and Risk Management at Mars since February 2016. At Mars, Kathleen Carpenter was also Enterprise Security Architect Director from July 2015 to February 2016 and Business Partnership Senior Manager - Supply Chain from June 2013 to June 2015.
Matt O'Toole
LinkedInExperience: Assurance & Compliance Director · Mars
Matt O'Toole has been Assurance & Compliance Director at Mars since April 2024 and was Application Security Senior Lead at Mars from April 2019 to April 2024. Matt O'Toole was Senior Manager - Cyber Risk Services at Deloitte from September 2014 to April 2019.
Matthew Pecorelli
LinkedInExperience: Deputy Chief Information Security Officer · Mars
Matthew Pecorelli has been Deputy Chief Information Security Officer at Mars since April 2015, and the profile headline gives the role as Deputy Chief Information Security Officer & Vice President. Matthew Pecorelli was Senior Manager at Accenture from January 1999 to April 2015.
Rochelle Jordan, CISSP
LinkedInExperience: Security Assurance and Compliance Director · Mars
Rochelle Jordan has been Security Assurance and Compliance Director at Mars since January 2023 and was Security Service Manager at Mars from March 2016 to January 2023, a role the profile describes as SAP Security Service Manager. Rochelle Jordan was SAP HANA Security Manager at Accenture - CIO SAP Program from September 2015 to March 2016.
Walter Porto
LinkedInExperience: Cyber Security Director · Mars
Walter Porto has been Cyber Security Director at Mars since August 2022, based in São Paulo. The profile headline describes Walter Porto as a Global Cybersecurity Director covering Security Operations & Incident Response and Identity & Directory Security.
Choose the right perspective
Pick the person whose security remit is closest to your question, since governance, threat management, architecture and plant OT security involve different decisions. Check the dates on each role to see how recent the experience is.
Questions to take into the conversation
- 01What did you focus on first when you took on your current security role?
- 02How do you decide which security risks to address first when time and staff are limited?
- 03What has your own work taught you about getting business and plant teams to adopt security practices?
Reaching Mars security leaders
How can I contact one of these Mars security leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: Mars, based on profile data retrieved on October 20, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach Mars security leaders?
You choose the offer, starting at $5 per person. The offer is what the person receives, and Instant Expert's fee is added on top, so a $100 offer costs you $125. The fee is 20% of what you pay. You're charged only when the person books the call or sends the answer.
What if they don't reply?
You pay nothing. Instant Expert sends follow-up reminders, and if the person hasn't booked or answered within 7 days, the request expires and any hold on your card is released. You can invite several of the 10 people on this list at once and cap your total spend, so you pay only for the ones who accept.
Can an AI agent ask one of these Mars security leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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