Client-Side Security
Client-Side Security
Backed by Cloudflare's world-class threat intelligence and machine learning capabilities, Client-Side Security helps defend against browser supply chain attacks that target vulnerable JavaScript dependencies. Simplify PCI DSS compliance, block Magecart-style attacks, and boost visibility into web resources.
Intelligent attack prevention
Improved visibility
Automatic threat alerts
Meet compliance requirements
Prevent financial and identity theft
Go beyond content security policies (CSP)
Frequently asked questions
Cloudflare Client-Side Security is a client-side security solution that helps protect users' personal and financial data. It defends websites against attacks targeting vulnerable JavaScript dependencies, from Magecart-style attacks that exfiltrate user data to cryptojacking attacks. Client-Side Security helps web apps maintain compliance with frameworks like PCI DSS and the GDPR.
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