Network Security | Secure Browser

The browser is your largest attack surface — isolation is how you close it

More corporate work happens inside a browser than in any other application, and attackers have followed. Phishing, drive-by downloads, malicious JavaScript, and session hijacking all exploit the browser directly.

Enterprise browser isolation moves web content execution away from the endpoint and into a controlled environment where threats are neutralized before they can reach the device, the network, or corporate data.

Protect browser sessions with enterprise-grade isolation technology.

A Critical Gap

Why traditional controls do not protect the browser session

Network-layer controls like ZTNA and SWG govern whether a user can reach an application. They say nothing about what happens inside that session once access is granted.

The Challenge

A user with legitimate access to a SaaS tool can still download sensitive data, introduce malware from a compromised personal device, or have their session credential stolen. The network control did its job and the breach still happened.

Drive-by malware executes in the browser on the endpoint before any network control can intervene
Session hijacking and cookie theft target authenticated sessions, bypassing credential controls entirely
BYOD and unmanaged devices access SaaS applications outside the reach of agents and MDM
Data exfiltration through downloads, copy/paste, and screen capture happens at the browser layer
Phishing credential entry cannot be blocked by controls that do not understand session context

Three Isolation Models

Browser isolation is not a single technology. Three distinct models address different risk profiles and deployment scenarios.

Remote Browser Isolation (RBI)

Web content executes on a remote server in a disposable container. The user sees a visual stream of the page. No web code runs on their device. The container is destroyed after the session, taking any malware with it.

Local Browser Isolation

The browser executes in a sandboxed container on the endpoint, isolated from the OS and other applications. Less bandwidth-intensive than RBI. Requires strong endpoint management discipline to be effective.

Enterprise Browser Replacement

A purpose-built managed browser replaces the default browser for corporate use. Enforces download controls, clipboard restrictions, credential protection, and full session visibility. Works on managed and unmanaged devices.

Data Controls

Session-level controls that network security cannot provide.

Download & Upload Controls

Block or restrict file downloads and uploads based on policy and content sensitivity.

Clipboard & Copy Protection

Prevent data exfiltration through copy/paste operations and clipboard access.

Screen Capture Blocking

Block screenshots and screen recording with watermarking for audit trails.

Outcomes

  • Neutralize browser-based threats before they reach endpoints
  • Enforce data controls inside authenticated sessions
  • Enable secure access from unmanaged devices
  • Close the session-layer gap in Zero Trust architectures

Operational Fit

  • Organizations with significant BYOD or contractor populations accessing corporate SaaS
  • Environments handling sensitive data in web applications where data exfiltration is a compliance concern
  • Security teams that have deployed ZTNA but recognize the browser-layer gap
  • Regulated industries where session-level controls and audit trails are required
Deployment Models

Choose the right isolation approach for your environment

Each model addresses different risk profiles and operational requirements.

Local Browser Isolation

Balanced Approach

Endpoint sandboxing with lower bandwidth requirements.

Best Fit

Managed environments with strong endpoint controls already in place.

Tradeoffs

Requires endpoint management discipline and agent deployment.

Enterprise Browser Replacement

Flexible Deployment

Purpose-built browser with integrated controls for managed and unmanaged devices.

Best Fit

Mixed environments with both managed and BYOD access requirements.

Tradeoffs

User experience changes as they adopt a new browser interface.

Why IVI

Browser isolation expertise for enterprise environments

Zero Trust Integration

Browser isolation that complements your existing ZTNA and SASE investments.

How It Works

ZTNA controls application access, browser isolation controls session behavior - together they close the complete access control loop.

Deployment Flexibility

Support for managed devices, BYOD, and contractor access scenarios.

Agentless Options

Remote browser isolation provides secure access without requiring device enrollment or software installation.

FAQs

Frequently Asked Questions

Common questions about enterprise browser isolation.

Does browser isolation replace our existing SWG or CASB?

No. Browser isolation, SWG, and CASB operate at different layers and are complementary. SWG and CASB provide network-layer and cloud application governance. Browser isolation enforces policy inside the browser session itself, closing gaps that network controls cannot address.

Can browser isolation protect access from unmanaged devices?

Yes. Remote browser isolation delivers an agentless access model where the user connects through a web portal with no software installation required. Enterprise browser replacement can also be deployed with a lightweight download that does not require MDM enrollment.

What data controls does browser isolation enforce?

Download restrictions, upload blocking, clipboard isolation, copy/paste controls, screen capture blocking, and watermarking. The specific capabilities vary by platform and deployment model.

How does browser isolation fit into a Zero Trust architecture?

ZTNA controls which applications a user can access. Browser isolation controls what happens inside those sessions. They are complementary: a Zero Trust architecture without browser-layer controls has a session-layer gap that browser isolation closes.

What is the performance impact of remote browser isolation?

RBI requires bandwidth for streaming the visual session and may introduce some latency. Modern platforms optimize for performance, but organizations should assess their network capacity and user experience requirements when evaluating deployment models.

How does browser isolation handle compliance and audit requirements?

Browser isolation platforms provide detailed session logging, user activity tracking, and policy enforcement reporting. This creates comprehensive audit trails for compliance frameworks that require visibility into data access and handling within web applications.