Insights

Enterprise scaling Mastercard’s recent engagement signals a strong validation of Source Defense’s value proposition for large enterprise eSkimming protection, suggesting a sales opportunity to pursue other financial services firms and payment networks seeking client-side security.

PCI DSS momentum The launch of a free PCI DSS 4.0 compliance support solution indicates appetite for compliance-oriented buyers and partners; target security teams and MSPs serving eCommerce and retail clients seeking to simplify PCI DSS 4.0 adoption.

Funding traction Prior funding rounds and a substantial total funding level, along with a leadership change in 2023, suggest runway and growth confidence, making the company a potentially open to upsell of enhanced web application protection and data privacy features.

Strategic leadership New CEO appointed in 2023 combined with a market leader position in client-side protection presents a favorable window for executive-aligned outreach, strategic partnerships, and co-innovation opportunities with adjacent cybersecurity vendors.

SMB to enterprise path Revenue scale and employee range position Source Defense between mid-market and enterprise; identify upsell opportunities with mid-size eCommerce sites and B2B platforms that rely on extensive third-party vendor ecosystems for growth.

Source Defense Tech Stack

Source Defense uses 8 technology products and services including DoubleClick Floodlight, Source Defense, React, and more. Explore Source Defense's tech stack below.

  • DoubleClick Floodlight
    Advertising
  • Source Defense
    Endpoint Protection
  • React
    Javascript Frameworks
  • Video.js
    Javascript Libraries
  • HubSpot
    Marketing Automation
  • Telerik Fiddler
    Testing And Qa
  • Google Tag Manager for WordPress
    Web Platform Extensions
  • TablePress
    Web Platform Extensions

Media & News

Source Defense's Email Address Formats

Source Defense uses at least 1 format(s):
Source Defense Email FormatsExamplePercentage
First@sourcedefense.comJohn@sourcedefense.com
56%
First.Last@sourcedefense.comJohn.Doe@sourcedefense.com
39%
Last@sourcedefense.comDoe@sourcedefense.com
3%
FLast@sourcedefense.comJDoe@sourcedefense.com
2%

Frequently Asked Questions

What is Source Defense's official website and social media links?

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Source Defense's official website is sourcedefense.com and has social profiles on LinkedInCrunchbase.

What is Source Defense's NAICS code?

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Source Defense's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does Source Defense have currently?

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As of July 2026, Source Defense has approximately 49 employees across 3 continents, including AsiaNorth AmericaEurope. Key team members include Chief Executive Officer: R. H.Chief Financial Officer: M. K.Vp R&d: S. S. ש. ש.. Explore Source Defense's employee directory with LeadIQ.

What industry does Source Defense belong to?

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Source Defense operates in the Computer and Network Security industry.

What technology does Source Defense use?

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Source Defense's tech stack includes DoubleClick FloodlightSource DefenseReactVideo.jsHubSpotTelerik FiddlerGoogle Tag Manager for WordPressTablePress.

What is Source Defense's email format?

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Source Defense's email format typically follows the pattern of First@sourcedefense.com. Find more Source Defense email formats with LeadIQ.

How much funding has Source Defense raised to date?

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As of July 2026, Source Defense has raised $41M in funding. The last funding round occurred on Apr 26, 2022 for $27M.

When was Source Defense founded?

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Source Defense was founded in 2014.
Source Defense logo

Source Defense

Computer and Network SecuritySouthern District, Israel11-50 Employees

Source Defense operates within the computer and network security sector, focusing on protecting commercial websites from client-side threats introduced by third-party vendors. Many websites rely on dozens of external vendors, which can create vulnerabilities on the client side that leave sites exposed. The company employs a real-time sandbox isolation approach to curb malicious activity that may originate from website supply chain vendors.

Based in Beersheba, in the Southern District of Israel, Source Defense serves businesses with websites that rely on third-party integrations and seeks to strengthen their client-side security. A recent development noted in industry coverage indicates that Mastercard became a client in March 2026, demonstrating engagement with enterprise customers.

Section iconCompany Overview

NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2014
Employees
11-50

Section iconFunding & Financials

  • $41M

    Source Defense has raised a total of $41M of funding over 4 rounds. Their latest funding round was raised on Apr 26, 2022 in the amount of $27Mas a series_b.

  • $50M$100M

    Source Defense's revenue is estimated to be in the range of $50M$100M

Section iconFunding & Financials

  • $41M

    Source Defense has raised a total of $41M of funding over 4 rounds. Their latest funding round was raised on Apr 26, 2022 in the amount of $27Mas a series_b.

  • $50M$100M

    Source Defense's revenue is estimated to be in the range of $50M$100M

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