Platform
- - - PLATFORM
      Client-side protection built for every stage of risk
      
      Source Defense is straightforward, simple-to-use client-side data protection and PCI DSS compliance software that closes this ubiquitous gap in digital supply chain security.
      
      Explore platform
      
      Protect
      
      Proactive, automated prevention and full-site protection against malicious scripts.
      Learn more
      
      Detect
      
      Real-time visibility into third-party and client-side script behavior.
      Learn more
      
      Acquirer Protect
      
      Extend PCI DSS 6.4.3 coverage across merchant portfolios at scale.
      Learn more
      
      SEE IT LIVE
      Watch Source Defense
      
      A 2-minute walkthrough of Protect and Detect defending a live checkout.
      Watch demo
Solutions
- - - SOLUTIONS
      The right protection for your role and industry
      
      Source Defense combines industry-leading digital skimming solutions with comprehensive client-side data protection in software that’s powerful, yet easy to manage.
      
      Explore solutions
      
      BY ROLE
      
      Merchants
      
      Merchant Acquirers
      
      Payment Service Providers
      
      Ecommerce Platform Providers
      
      BY INDUSTRY
      
      Retail & Ecommerce
      
      Financial Services
      
      Healthcare
      
      Hospitality & Travel
      
      Telecommunications & Media
      
      NOT SURE WHERE YOU FIT?
      Talk to a client-side security specialist
      
      We'll map your stack to the right product and compliance path.
      
      PCI DSS 4.0.1 COVERAGE
      
      90%
      
      Merchants
      
      Acquirers
      
      PSPs / Platforms
      
      Find my fit
Resources
- - - RESOURCES
      Research and insight on client-side risk
      
      Blog
      
      Perspectives on digital skimming, Magecart and the browser threat landscape.
      Explore
      
      White Papers
      
      In-depth guides on PCI DSS 4.0.1 and client-side compliance.
      Explore
      
      Webinars
      
      Live and on-demand sessions with our security research team.
      Explore
      
      Threat Research
      
      Original findings from our client-side security research lab.
      Explore
      
      FEATURED REPORT
      2025 eSkimming Landscape Report
      
      A year of Source Defense Research on how eSkimming evolved in 2025, and what security teams should do next.
      Get the report
Partners
- - - PARTNERS
      Grow your practice with Source Defense
      
      Partner Program Certification tiers, deal registration and co-selling support.
      
      Reseller & MSSP Bundle client-side protection into your managed security offering.
      
      QSA Assessor resources for validating PCI DSS 6.4.3 controls.
      
      Partner With Us Explore partnership opportunities.
      
      Deal Registration Register opportunities and deals.
      
      BECOME A PARTNER
      Add PCI DSS-ready protection to your stack
      
      Deal registration, margin protection and dedicated partner enablement.
      
      PARTNER TIERS
      Registered · Silver · Gold · Platinum
      
      Apply to become a partner
Company
- - - COMPANY
      The category creator in client-side security
      
      Why Source Defense?
      
      10 years engineering focused solely on client-side security.
      Learn more
      
      Leadership
      
      Meet the team building the category standard.
      Learn more
      
      Press
      
      News, coverage and announcements.
      Learn more
      
      Careers
      
      Open roles across engineering, research and go-to-market.
      Learn more
      
      Contact us
      
      Have questions? Let’s talk about protecting your digital supply chain.
      Learn more
      
      BY THE NUMBERS
      
      1,000+ leading brands protected worldwide
      
      1.2B page views secured every month
      
      See open roles

Book a demo Buy now

Company /Leadership

Meet the leaders advancing client-side security

Our team was tailored to understand the full weight of the third-party script danger and has a unique perspective on the third-party ecosystem. Each of our leaders experienced the pains of working with third-party scripts from multiple angles, working in both technology companies manufacturing third-party solutions, and the sites that incorporate them.

Ross Hogan

CEO

Hadar Blutrich

CTO & Co-founder

Stephen Ward

CMO

Sagi Shvartz

VP R&D

Max Konik

CFO

Platform
Solutions
- BY INDUSTRY
- BY ROLE
Resources
Partners
Company

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