Securing the Browser to Tackle Workforce Cyber Risk

Neon Cyber's Mark St. John on Stopping Shadow SaaS and AI at Browser Level Tom Field (SecurityEditor) • December 25, 2025

The humble web browser is one of the most overlooked blind spots in enterprise security. Identity, SaaS and artificial intelligence application usage has replaced infrastructure as the new perimeter, and it all plays out in the browser, said Mark St. John, co-founder and COO of Neon Cyber.

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Rather than integrating with every identity provider or management layer, Neon captures user interactions directly in the browser, he said. That includes form fills, navigation events and login behaviors, helping detect unsanctioned SaaS use, AI adoption and modern phishing tactics embedded deep in legitimate-looking apps.

"Attackers are paying for Docusign, they're paying for Dropbox. Now what's going on inside of ...