Authentic8's Silo is one of the longest-running remote browser isolation (RBI) products aimed squarely at regulated enterprises and organizations seeking to reduce web-borne risk. In 2026, with more hybrid work and persistent web threats, RBI remains a strategic control. This review evaluates Silo across architecture, security effectiveness, admin controls, identity integration, end-user experience, observability, deployment, and where it fits in an enterprise stack.
What Silo does and who it's for
Silo is a cloud-based remote browser: user web sessions execute on Authentic8’s infrastructure and only safe renderings or streamed pixels (or reconstructed DOM) reach the endpoint according to policy. The product targets security teams that must protect sensitive data and supply strict data exfiltration controls — financial services, government, and legal firms are common customers. Unlike simple URL filtering or browser hardening, Silo is designed to contain web threats at the session level and enforce granular enterprise policies.
Evaluation methodology
For this review we deployed Silo in a test tenancy, integrated it with SAML-based SSO (via an Okta sandbox), and exercised typical workflows: accessing Office 365, Salesforce, internal intranet apps (via published URLs and a reverse proxy), and popular JS-heavy sites. We evaluated:
- Isolation fidelity and threat containment
- Policy granularity (file transfers, clipboard, prints)
- Identity, SSO and group-based policy controls
- Observability and forensic logs
- Performance and end-user experience
- Deployment and integration effort
Key findings
Security and isolation model
Silo delivers a mature isolation model: all web content executes remotely and the platform provides session forensic logs, session recording, and fine-grained controls for file transfer and clipboard interactions. In our tests, attempts to run a basic JS-based exploit payload were contained in the remote session and did not touch the local workstation. The product supports policy-based content handling — you can allow downloads only to designated safe storage locations or require DLP screening on transfer.
Policy controls and data exfiltration
The policy engine is granular. Administrators can create per-group policies that control:
- Allowed navigation domains and forced access via an inline proxy
- Download/upload enforcement with mandatory DLP or manual review
- Clipboard and print blocking or redirection
- Credential handling rules (credential passthrough vs. one-time credentials)
This granularity makes Silo practical for organizations that need to allow productive web use while tightly controlling data escape paths.
Identity, SSO and role-based policies
Silo integrates with SAML-based identity providers for single sign-on and supports group sync so policies can be attached to AD/Okta groups. This integration felt straightforward in our Okta test, and group-based policy rollout worked reliably. For enterprises already invested in modern identity stacks, Silo maps cleanly to existing role-based controls.
Compatibility with enterprise web apps
Silo handles most SaaS applications well — Office 365, Salesforce, Workday, and modern single-page apps functioned acceptably in our tests. There are caveats: applications that rely on local client helpers (some legacy VPN-savvy intranet utilities, or ActiveX-era components) still require either a dedicated path (reverse proxy or connector) or endpoint fallbacks. Authentic8 provides guidance and connectors for internal app access, but projects involving dozens of legacy intranet apps will need planning.
Observability and forensic capabilities
Authentic8 includes session logs, session replay, and file transfer audit trails. For security operations, the telemetry is practical: you get URL-level audit, file hashes for transferred artifacts, and the ability to replay sessions for incident investigation. Exporting logs to SIEMs was supported and straightforward, enabling correlation with other enterprise telemetry.
Performance and user experience
End-user latency remains the main trade-off with all RBI products. In everyday browsing Silo's streaming/DOM reconstruction produced snappy results; heavy interactive web apps occasionally exhibited cursor/typing lag for users on high-latency links. For users on typical corporate connections (sub-50 ms to the vendor region) the experience was acceptable. File uploads and downloads have intentional friction because of security scanning — expect marginal delays when crossing policy barriers.
Deployment model and integrations
Silo is cloud-first. Integration into corporate networks uses either client-side routing or per-site proxies; Authentic8 provides connectors and documentation for hybrid access to internal resources. IT teams should budget time for pilot runs to identify legacy app edge cases. The admin console is focused and practical: role-based admin accounts, policy templates, and an effective policy simulator helped reduce mistakes during rollout.
Pros and cons
- Pros: Strong session containment; granular data exfiltration controls; solid SSO and group policy integration; practical observability for SOC workflows; good SaaS compatibility.
- Cons: Cloud-only model may require architectural adjustments for strict on-prem requirements; some legacy intranet apps need additional connectors or rework; performance depends on user-to-cloud latency and large-file workflows introduce friction by design.
Where Silo fits in an enterprise architecture
Silo is not a drop-in replacement for traditional endpoint hardening. It excels as a compensating control where web access represents a high-risk vector: contractors accessing third-party sites, investigative browsing by analysts, or regulated users needing a clean browsing channel. It pairs well with SSE/SWG stacks and DLP — use Silo to contain unknown content while your perimeter and endpoint controls handle other traffic.
Recommendations
- Run a staged pilot covering typical user personas (sales, finance, analysts) to identify web-app edge cases and measure real-world latency.
- Integrate SAML group sync early so policy rollout is automated and consistent with existing RBAC.
- Plan file transfer workflows and DLP mapping: define clear approved repositories for downloads to reduce friction.
- Use session replay and SIEM exports to operationalize Silo logs for your SOC and compliance teams.
Verdict
Authentic8 Silo remains a mature RBI option in 2026. Its strengths are reliable isolation, practical policy granularity, and enterprise-grade observability. It is especially useful for organizations that require auditable containment of web sessions and strict control over data movements. Expect some deployment work for legacy intranet compatibility and to accept the inevitable UX trade-offs of remote execution. For security teams that prioritize containment and forensic clarity over minimal latency, Silo is a defensible choice.