MirrorTab

MirrorTab is a San Francisco cybersecurity startup that stops browser-based attacks by moving the browser session server-side. Its isolation technology intercepts and sanitizes a web session at the edge before it ever reaches a user's device, so malware, malicious extensions, bots, and AI-driven automation never touch the application's code, data, or APIs. Founded in 2021 by Honey co-founder Brian Silverstein, the company raised an $8.5M seed round led by Valley Capital Partners in February 2025 and targets financial services, e-commerce, and government.