Locations
San Francisco, CA, USA · Dover, DE, USA · Mile End, London, UK · Kingston Vale, London SW15, UK
industry
Computer & Network Security · Security
Size
11 - 50 employees
Stage
Seed
founded in
2024
Cside is a cybersecurity company delivering AI-driven client-side security solutions to detect and prevent malicious third-party scripts and fraud. Its platform combines real-time script detection, an advanced proxy service, and an AI-based detection engine to protect websites against emerging threats. Cside is recognized as a leader in client-side security and compliance, with validation from VikingCloud, the world’s largest PCI DSS assessor. In Q1 2025 alone, the company identified more than 300,000 previously unseen client-side attacks. The company’s key cybersecurity solutions include: - PCI Shield: Client-side security packaged for PCI DSS compliance. - Privacy Watch: Real-time monitoring of client-side dependencies in the end user’s browser, supporting GDPR, CCPA, HIPAA, DORA, and other regulations.
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