browser-security
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Dori Harpaz Put the Browser at the Center of the Security Story
His career moved from soap and social trading to the hidden risks inside a browser tab. At LayerX, Dori Harpaz helped turn a technical security argument into a business story that traveled all the way to Akamai.
LayerX Bet the Browser Would Become the New Office. Akamai Paid $205 Million for the Shortcut.
Instead of forcing employees into a new corporate browser, LayerX slipped security into the ones they already used. Four years, $45 million in funding and one AI boom later, Akamai bought the control point.
John Rueca Makes Strategy Survive Contact With the Calendar
At Menlo Security, John Rueca works in the narrow, consequential space between an executive decision and the hundreds of details required to make it real.
PixieBrix
PixieBrix is a New York-based software company that started as a low-code browser extension for customizing and automating web apps, and has evolved into a browser-native platform for monitoring, guiding, and securing the actions people and AI agents take inside their web applications. Deployed as a lightweight Chrome/Edge extension, it lets teams add context-aware automations, AI assistance, and real-time policy enforcement on top of any website - originally aimed at customer support and contact-center productivity, and more recently at agent oversight, compliance, and safe AI-agent browsing.
Brian Silverstein
Brian Silverstein is the founder and CEO of MirrorTab, a San Francisco cybersecurity company that treats the browser as the new battleground and tries to take it off the table entirely. Using server-side isolation, MirrorTab strips the client-side attack surface so malware, malicious extensions, and bots never touch the real code, data, or APIs behind a web session. Before MirrorTab he was an early co-founder and CTO of Honey, the shopping-rewards browser extension acquired by PayPal, and an engineer at Apple, Nest, Broadcom, and Freescale. A Cornell-trained electrical engineer with eight patents, he raised an $8.5M seed in 2025 led by Valley Capital Partners with GV and others.
Bill Robbins
Bill Robbins is the Chief Executive Officer of Menlo Security, a Mountain View-based cybersecurity company specializing in browser-based security and AI-driven threat prevention. With over 30 years of enterprise technology sales and leadership experience across Symantec, Nuance Communications, FireEye, Mandiant, and Sophos, Robbins joined Menlo as President in November 2024 and was elevated to CEO in February 2026 after helping the company surpass $140M in ARR. He now leads Menlo's push into AI agent security and agentic AI runtime protection, targeting the next wave of enterprise threats.
Harmonic Security
Harmonic Security helps enterprises adopt generative AI without leaking sensitive data. Using small, purpose-built language models, its AI Governance and Control platform spots risky prompts, enforces policy across browsers and desktops, and gives security teams visibility into the thousands of AI tools employees quietly use every day.
Spin.AI
Spin.AI is an AI-powered SaaS security and data-protection company based in Palo Alto. Its SpinOne platform unifies SaaS Security Posture Management, ransomware defense, automated backup and recovery, and browser extension risk control for Google Workspace, Microsoft 365, Salesforce, and Slack - serving more than 1,500 organizations across 100+ countries.
Dmitry Dontov
Dmitry Dontov is the CEO and co-founder of Spin.AI, a Palo Alto-based SaaS security platform that protects mission-critical cloud data across Google Workspace, Microsoft 365, Salesforce, and Slack. With over 20 years in cybersecurity, two patents to his name, and $21.5M raised including a K1 Investment Management round in March 2026, Dontov has built a platform serving 1,500+ organizations across 100+ countries. A Forbes Business Council member, Young Entrepreneur Council contributor, and columnist for Dark Reading, he's positioned Spin.AI as a Forrester Wave Strong Performer in SaaS Security Posture Management.