Comparing Seraphic vs Extension-Based Solutions

Seraphic is an innovative browser agent that seamlessly deploys into any traditional or AI browser, instantly turning it into a Secure Enterprise Browser (SEB).

Understanding the Basics

Browser Security solutions sit at the heart of the browser, providing in-context, ongoing threat protection against script execution, data leakage, zero-days, and compromised identities before they occur. Enterprises often choose a Browser Security solution for their proactive threat protection, comprehensive coverage, Data Loss Protection (DLP) and governance, and their ability to integrate with other security solutions.

What is Seraphic Secure Enterprise Browser

Seraphic’s Secure Enterprise Browser is powered by native JavaScript Agent (JSA) enforcement, giving precision, pre-execution, and runtime control inside the browser. Seraphic stops zero and n-day exploits, advanced phishing, token/session theft, in-session exfiltration, and data loss before it happens – with no workflow change. Seraphic is injected into existing browsers or offered as a hardened browser for BYOD/contractors. The lightweight, policy-driven JavaScript component operates in the page context to govern web APIs and data paths in real-time, enabling prevention, not just detection. It augments the existing browser with an injected, standards-compliant JSA, preserving native behavior and UX, with near-zero latency.

What is an Extension-Based Solution

Extension-based security solutions are browser add-ons designed to provide protection from phishing, malware, data exfiltration, and identity threats within the browser environment. By monitoring browser activities and enforcing security policies at the point of interaction, extension-based solutions provide granular control and visibility over both SaaS and internal web resources. This approach enables organizations to defend against emerging web-based threats.

Why Extension-Based Solutions Fall Short

Extension-based solutions provide a user-friendly layer of defense by blocking common web threats and supporting enterprise policy enforcement. However, they fall short against advanced threats and sophisticated browser exploits, as they cannot control deeper browser or operating system layers and may be circumvented by malicious extensions or zero-day attacks.

Extension-based solutions cause shortfalls in:

Lack of depth & timing

Doesn’t cover critical browser layers and many controls trigger post-navigation alerts.

Limited reach

Sandboxed from critical page internals; can’t reliably instrument every app flow, identity hop, or exfil vector.

Breakout paths

Native helpers, downloads, service workers, and headless automations routinely slip past extension-only controls.

Resilience

Users can disable or uninstall extensions, switch profiles, and use unmanaged devices and alternative browsers.

Maintainability

Browsers and apps get frequently updated, outpacing static extension rules, leading to security drifts

Browser restrictions

Extensions can only access what is available via public APIs and any browser enhancement will create a gap that Extension-Based solutions need to keep up with.

Complex support

Difficult and not intuitive setup of unmanaged devices that causes end-user friction and enforcement challenges.

How Seraphic Secures the Browser

Seraphic delivers native, patented JavaScript Security Agent (JSA) enforcement that adds precise pre‑execution and runtime control inside any browser. It prevents zero‑ and n‑day exploits, advanced phishing, token and session theft, and in‑session data exfiltration before it happens, with inline DLP and governance and no workflow changes. It also adds AI‑aware protections to govern prompts, responses, and model connections in web and SaaS workflows.

At its core is a small, lightweight, policy‑driven JavaScript component that runs in the page context to instrument and govern web APIs and data paths in real time. Rather than replacing the browser, it augments it with a standards‑compliant JSA, preserving native behavior and user experience with near‑zero latency.

Seraphic places a JavaScript‑based abstraction layer above the browser’s JavaScript engine, effectively its kernel. From this vantage point, it exposes execution and memory planes to enable pre‑execution control, exploit prevention, and fine‑grained data governance across any browser and Electron app—without requiring users to switch browsers.

Identity‑ and app‑aware policies follow users across SaaS and web apps, including unmanaged devices and multiple browsers. DLP is enforced inline with granular controls for fields, forms, clipboard, downloads, uploads, and screenshots, with smart redaction and masking. AI security extends this with guardrails for AI usage, prevention of sensitive data exposure to AI platforms, and allow‑/deny‑listing of AI tools.

Because enforcement happens in the page context, controls remain consistent across versions and browsers (traditional and Agentic), and are resilient to upstream browser changes. The experience is user‑friendly, with inline guidance and just‑in‑time prompts that remediate issues without breaking workflows. Deployment is frictionless and lightweight, requiring no heavy endpoint agents and with no impact on user browsing experience.

Seraphic is available in flexible delivery models: inject into existing browsers via extension, embed within an existing browser build, use agentless or workspace‑level paths, or deploy a hardened Seraphic browser for BYOD and contractor use.

Area of Focus	Enterprise-based limitation	Seraphic approach
Threat Prevention	Constrained by browser extension APIs—cannot access/process all browser actions, so zero-days or advanced exploits bypass protection	Enforces protection at the browser runtime with real-time analysis and Moving Target Defense, blocking zero-days and sophisticated threats
Visibility and Control	Limited visibility due to permissions and restrictions; unable to see or govern all web events or user actions	Sits within the browser’s JavaScript engine to offer full context and deep visibility into browser activities for granular policy enforcement
Persistence and Tamper Resistance	Extensions can be easily toggled off, removed, or disabled by users or attackers	Seraphic's JavaScript Agent is resistant to tampering, enforcing policies even if users attempt to bypass or remove controls
App Compatibility	May break or miss security events in high-complexity web apps and can conflict with other extensions	Works seamlessly across all browsers and apps, and does not interfere with browser features or app workflows
Data and Identity Protection	Cannot consistently prevent credential theft or in-browser data loss like copy-paste, screenshots, session hijack	Enables dynamic data masking, watermarking, blocking of risky actions (print, screenshot), and robust session/cookie protection at browser runtime