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Greg Koss Email & Phone Number

President at Greg Koss & Associates
Location: San Mateo, California, United States 4 work roles
1 work email found @cybersource.com LinkedIn matched
✓ Verified May 2026 3 data sources Profile completeness 86%

Contact Signals · 1 work email

Work email g****@cybersource.com
LinkedIn Profile matched
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Current company
Greg Koss & Associates
Role
President
Location
San Mateo, California, United States

Who is Greg Koss? Overview

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Quick answer

Greg Koss is listed as President at Greg Koss & Associates, based in San Mateo, California, United States. AeroLeads shows a work email signal at cybersource.com and a matched LinkedIn profile for Greg Koss.

Greg Koss previously worked as Sr. Dir. Infrastructure & Security for Cybersource, a Visa Inc. company at Cybersource and Information Security Specialist/Business Unit CISO at Visa.

Company email context

Email format at Greg Koss & Associates

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{first_initial}{last}@cybersource.com
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AeroLeads found 1 current-domain work email signal for Greg Koss. Compare company email patterns before reaching out.

Profile bio

About Greg Koss

I have worked or consulted at startups and Fortune 500 companies as diverse as Visa, Wells Fargo, American Express, Sony, Citibank, Cisco, and some nascent companies that no longer exist.I have worked at the individual contributor level as well as senior management positions depending on the requirements of the role and the size of the organization.My experience covers verticals such as payment systems, banking/finance, IT services, analytics/data mining, wireless, and semiconductors.Specialties: Information Security, Project Management, system design for transaction processing, infrastructure architectures for high performance computing for Analytics, Data Mining, and high performance networking in a cost effective manner.

Listed skills include Security, Information Security, Enterprise Software, Management, and 46 others.

Current workplace

Greg Koss's current company

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Greg Koss & Associates
Greg Koss & Associates
President
4 roles · 32 years

Greg Koss work experience

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President

Current
Greg Koss & Associates

Companies as large as Wells Fargo & Cisco, small startups like Radiant Medical, Hearme.com, MPath.com and public agencies like the CA Department of Education and the Oakland Unified School District.If you need assistance with some aspect of IT infrastructure or Information Security I would be happy to find a solution that suits your business and budget.

Sep 1998 - Present

Sr. Dir. Infrastructure & Security For Cybersource, A Visa Inc. Company

Foster City, CA, US

Now I'm retired!:-)Enhance, Update, and Manage infrastructure and security products for Cybersource.Work directly with customers on connectivity, resiliency, and security.

Dec 2012 - Jun 2023

Information Security Specialist/Business Unit Ciso

Foster City, California, US

Perform CISO functions to 1200-person acquisition w/separate transaction processing infrastructure.Review projects to ensure adherence to key controls and security policies. Review and advise teams with regard to implementing new technologies in the Visa environment.Enhance and revise information security policies and requirements for Visa.

Aug 2007 - Dec 2012
FAQ

Frequently asked questions about Greg Koss

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

What company does Greg Koss work for?

Greg Koss works for Greg Koss & Associates.

What is Greg Koss's role at Greg Koss & Associates?

Greg Koss is listed as President at Greg Koss & Associates.

What is Greg Koss's email address?

AeroLeads has found 1 work email signal at @cybersource.com for Greg Koss at Greg Koss & Associates.

Where is Greg Koss based?

Greg Koss is based in San Mateo, California, United States while working with Greg Koss & Associates.

What companies has Greg Koss worked for?

Greg Koss has worked for Greg Koss & Associates, Cybersource, Visa, and Sonnet Financial, Inc..

How can I contact Greg Koss?

You can use AeroLeads to view verified contact signals for Greg Koss at Greg Koss & Associates, including work email, phone, and LinkedIn data when available.

What skills is Greg Koss known for?

Greg Koss is listed with skills including Security, Information Security, Enterprise Software, Management, Pci Dss, It Service Management, Vendor Management, and Enterprise Architecture.

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