Ivan Tsarynny

Ivan Tsarynny is the CEO and Co-Founder of Feroot Security, a recognized leader in AI-driven cybersecurity and governance, risk, and compliance (GRC) solutions that safeguard healthcare organizations' websites and patient portals. In February 2025, he led Feroot's groundbreaking discovery of hidden code in DeepSeek designed to covertly transmit data to China Mobile. Mr. Tsarynny provided testimony before a U.S. Congressional committee on national security risks of data collection by China's big tech sector. He has been featured on CNBC, ABC's Good Morning America, CNN's Anderson Cooper 360, and numerous other programs. His expertise is widely recognized in interviews and cited by publications including The Wall Street Journal, Bloomberg, Associated Press, and many others.

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pci dss for ecommerce payment pages

Client-Side Security

Compliance

PCI DSS Compliance

PCI DSS Compliance for E-Commerce: How to Secure and Monitor Payment Pages

Modern checkout pages have evolved from static forms into dynamic ecosystems where dozens of third-party scripts run alongside first-party code. This complexity…

October 17, 2025

Client-Side Security

JavaScript Security

How to Detect and Prevent JavaScript Injection Attacks on Websites

What you'll learn in this article: Why JavaScript injection attacks succeed: Modern sites load 40+ third-party domains that traditional perimeter security tools…

October 16, 2025

Client-Side Security

JavaScript Security

PCI DSS Compliance

Which Solutions Detect Unauthorized JavaScript Trackers in Real-Time?

What you will learn in this article: Most sites load many third parties, creating multiple script paths in the same browser as…

October 15, 2025

CSP vs client-sdie

Client-Side Security

Compliance

PCI DSS Compliance

CSP in 2025: What It Solves and Doesn’t for Client-Side Risk

What you’ll learn in this article Why PCI DSS 4.0.1 Requirements 6.4.3 and 11.6.1 extend compliance into the browser. How Content Security…

October 15, 2025

Cross-Site Scripting (XSS)

Client-Side Security

JavaScript Security

PCI DSS Compliance

How to Prevent Cross-Site Scripting (XSS) on Payment Pages

Many teams believe that cross-site scripting, or XSS, is a problem of the past. Modern frameworks promise built-in protections, and developers often…

October 9, 2025

Iframe Payment Security Risks and PCI DSS 6.4.3 Best Practices

PCI DSS Compliance

Iframe Payment Security Risks and PCI DSS 6.4.3 Best Practices

Master iframe payment security for PCI DSS 6.4.3 compliance. Learn critical risks, vendor requirements, and proven implementation practices.

October 7, 2025

PCI DSS 4.0 Compliance Checklist for 2025

PCI DSS Compliance

PCI DSS 4.0.1 Checklist (2025): Automate 6.4.3 and 11.6.1

What You'll Learn: TL;DR Why 47 new requirements change everything: PCI DSS 4.0.1 shifted from point-in-time audits to continuous monitoring, something manual…

October 2, 2025

PCI DSS script management

PCI DSS Compliance

PCI DSS 6.4.3 Script Management: What CISOs Actually Need to Know

Understand PCI DSS 6.4.3: build a payment-page script inventory, authorize third-party code, enforce integrity checks, and monitor changes—what CISOs must prioritize.

September 30, 2025

pci-audits

Client-Side Security

PCI DSS Compliance

Why PCI Audits Fail: CISO’s Guide to PCI DSS 6.4.3 and 11.6.1 Compliance

TL;DR: Most PCI audits prioritize passing checklists over preventing breaches, leaving organizations exposed to client-side risks. PCI DSS Requirements 6.4.3 and 11.6.1…

September 29, 2025