Top Features To Look For in an SSE Platform

Overview

A complete security service edge (SSE) platform includes three core components: a cloud native secure web gateway (SWG) with full TLS/SSL inspection, zero trust network access (ZTNA) delivering app-level least-privileged access, and a multi-mode cloud access security broker (CASB). 

The best SSE platforms go further with integrated data loss prevention (DLP), AI security, firewall as a service (FWaaS), browser isolation, and advanced threat protection. Because not all SSE platforms are the same, you’ll need to carefully evaluate vendors’ advanced capabilities to make sure that they address your organization’s full-stack cloud native security needs.

Introduction

Security service edge (SSE) is a subset of secure access service edge (SASE). Because a complete SASE implementation takes significant time and resources, many enterprises start with SSE as the first step toward security modernization with a clear path to SASE convergence.

But not all SSE platforms offer the same capabilities, and there are many solutions that can’t provide the zero trust capabilities that are required to implement SSE correctly. 

This post walks through the top SSE features security and IT leaders must evaluate when selecting an SSE platform.

But first, we should take a step back and define some terms.

What is security service edge (SSE)?

Security service edge is a cloud native security framework that combines multiple network security functions into a single, unified platform delivered from a globally distributed security cloud. Gartner defines SSE as a component of the broader secure access service edge (SASE) model, whereby SSE focuses exclusively on the security side of that architecture. 

With SSE, organizations can address the networking and security challenges that come with cloud application adoption and the shift to a remote or hybrid working model. SSE moves security enforcement to the cloud, rather than to the corporate data center, and applies a zero trust architecture to grant access based on verified identities and policies. 

Security service edge platforms enable a faster, more consistent, and more scalable security posture. 

SSE vs. SASE: What’s the relationship?

SSE and SASE are related, but it’s important to distinguish them from each other. 

SSE is a subset of a complete SASE implementation. According to Gartner, SASE involves a cloud-based architecture that brings together security and networking connectivity in one approach. SSE is the security side of that equation, and the networking side of SASE involves software-defined wide area network (SD-WAN) solutions.

Together, SSE and SD-WAN adoption represent a complete SASE implementation. Because of the resource-intensive nature of implementing a full SASE deployment, many organizations choose to adopt SSE first.

What are the core components of an SSE platform? 

Security service edge consists of three core components: SWG, ZTNA, and CASB.

But top SSE platforms will extend their SSE features beyond SWG, ZTNA, and CASB. By choosing a top SSE vendor over one that only offers basic SWG, ZTNA, and CASB capabilities, organizations benefit from a fully integrated platform that consolidates tooling, closes security gaps, and enforces continuous adaptive trust across every user, device, and application. 

Let’s see how these advanced SSE features help enterprises simplify security operations and deliver consistent security outcomes.

What advanced features should the best SSE platforms offer?

Mature SSE vendors will include features such as DLP, digital experience monitoring (DEM), AI security, cloud sandboxing, browser isolation, FWaaS, and advanced threat protection.

There’s no need to roll out all of these features at once. If your SWG solution is built on a cloud native architecture and you approach the transition with a platform-based mindset, as opposed to a point solution-based one, you can seamlessly extend to ZTNA, CASB, and advanced capabilities as your timeline and budget allow.

SSE platform features to evaluate: Core vs. advanced capabilities

As you evaluate SSE platforms, it’s important to keep in mind that you’ll want to choose a vendor that offers both core and advanced capabilities so that you can roll out more advanced SSE capabilities over time. 

Here’s a breakdown of the top security service edge features you should look for as you evaluate vendors:

Top SSE features to look for as you evaluate vendors

The best SSE platforms have the following capabilities: 

Secure web gateway (SWG)

SWGs sit between your organization’s users and the internet. SWGs monitor and filter traffic, enforce usage policies, and prevent data loss.

Because over 95% of web traffic is encrypted, TLS/SSL inspection is a critical component of any complete SWG. Without TLS/SSL inspection, your SWG can’t identify or block the vast majority of malware, data exfiltration, or other threats hidden in encrypted traffic.

Organizations should look for a SWG with a cloud native, inline proxy-based architecture. Unlike legacy passthrough firewalls, a true proxy terminates both the connection from the user and the connection to the destination. With this approach, the SWG can fully inspect content in real time before re-encrypting it and moving that content along, all without latency.

Here are top SWG features to look for in your SSE solution:

• Inspects 100% of traffic to block encrypted threats. The solution decrypts and inspects every SSL/TLS session for every user, all without adding latency.

• Protects against advanced threats and malware by detecting and blocking ransomware, zero-days, and other emerging threats in real time.

• Monitors and controls web access with URL filtering and granular URL policy enforcement that scales to every device and site.

• Enforces policy for cloud apps and services by identifying, scoring, and governing all sanctioned and unsanctioned SaaS activity. 

• Neutralizes web threats with secure, isolated browsing so that risky sites never reach the endpoint.

• Prevents bandwidth overuse by stopping non-critical apps from overusing bandwidth. The solution also automatically prioritizes business applications and reins in bandwidth hogs.

Zero trust network access (ZTNA)

Zero trust is the technical backbone of any complete SSE platform, but it can be challenging to evaluate this capability in vendors. Many vendors claim to offer zero trust architectures, but those architectures still grant broad network access to users after an initial authentication. 

Real ZTNA eliminates implicit trust by connecting users to only the specific applications they need, while never placing them on the network.

Key ZTNA capabilities to look for include:

• App‑level, least‑privilege access with “inside‑out” connectivity. With this approach, apps and infrastructure stay dark to the internet. Users never join the network, which eliminates the risk of lateral movement.

• Unified ZTNA for users, workloads, and OT/IoT. The solution supports web and non‑web protocols in addition to client‑based and clientless options for third parties and BYOD.

• AI/ML-assisted user-to-app segmentation and app discovery to simplify microsegmentation without complex network rules.

• On-premises ZTNA and business continuity via Private Service Edge functionality, with automatic failover while retaining the same policies on and off network.

• A cloud native, globally distributed fabric for direct user-to-app paths, better performance, and centralized visibility and operations. 

• Inline protection for private app sessions, including full content inspection, AppProtection (to protect against the OWASP Top 10), and integrated DLP/isolation to reduce the risk of compromise and data loss.

Cloud access security broker (CASB)

A cloud access security broker is a security control point that sits between users and cloud applications to enforce enterprise security policies. CASBs help organizations maintain visibility and control as data moves outside traditional network boundaries. 

The best SSE platforms include CASB capabilities that use two deployment modes simultaneously: inline CASB and API-based CASB. 

Inline CASB provides real-time enforcement for sanctioned and unsanctioned apps, and API-based (or out-of-band) CASB scans data at rest to detect malware and identify misconfigurations. This multimode approach helps organizations in regulated industries, like healthcare and finance, to demonstrate compliance with frameworks such as GDPR, HIPAA, and PCI-DSS.

Key SSE features to look for in your vendor’s CASB solution include:

• Multimode enforcement, including inline proxy and API, to control data in motion and at rest across SaaS and IaaS with one policy model.

• Shadow IT discovery with application risk scoring and tenant/instance controls to distinguish sanctioned vs. unsanctioned usage.

• Granular data protection with integrated cloud data loss prevention (DLP) and collaboration management to detect and classify sensitive content and automatically remediate risky shares.

• SaaS security posture management (SSPM) to find and fix misconfigurations, excessive privileges, and risky integrations. Complete SSPM functionality includes guided or automated remediation capabilities.

• Threat prevention for SaaS via inline and out‑of‑band malware detection and cloud sandboxing, in addition to agentless browser isolation for unmanaged or BYOD access.

• Unified compliance visibility and reporting as part of a complete SSE platform, with CASB integrated alongside SWG, ZTNA, and DLP.

Advanced SSE features beyond SWG, ZTNA, and CASB

Mature SSE platforms extend beyond basic functionality to include capabilities that close critical security gaps, consolidate point products, and continuously enforce least-privileged access.

Features to look for in an advanced SSE platform include:

• Data loss prevention (DLP) that inspects data in motion inline and in real time across web, cloud, email, and private application traffic to prevent data from leaving the organization through an unauthorized channel. DLP integration with an SSE platform makes sure that data protection policies follow the user, not the network boundary.

• Digital experience monitoring (DEM) that provides real-time visibility into application performance, user experience, and network health across locations and devices. When integrated into an SSE platform, DEM helps IT and security teams identify the source of performance degradation.

• AI security applies machine learning and behavioral analytics to identify zero-day threats, malware, and anomalous activity that signature-based controls miss. AI security also enables teams with generative AI application governance and enforcement of acceptable use policies across sanctioned and shadow AI tools.

• Cloud sandboxing integrates into the SSE inspection pipeline and protects against ransomware, zero-day malware, and threats that evade inline signature detection.

• Remote browser isolation (RBI) prevents web code, scripts, or active content from executing locally, which protects against drive-by downloads, malicious JavaScript, and zero-day browser exploits. Enterprises with RBI that’s integrated into their SSE can apply selective browser isolation based on user, device, or risk profile without needing an endpoint agent or another point product.

• Firewall as a service (FWaaS) ties firewall enforcement to user identity and device posture instead of IP addresses, which helps enterprises align their network security with zero trust principles.

• Advanced threat protection involves a multilayered, inline defense stack that identifies and blocks sophisticated threats that can evade traditional controls, such as fileless malware and multi-stage attack chains.

SSE vendor evaluation checklist

As you search for the best security service edge platform for your organization, make sure that the vendor you choose will: 

• Provide SWG, ZTNA, and CASB capabilities in a single, cloud native platform
• Perform full TLS/SSL inspection at scale
• Deliver app-level least-privileged access
• Offer inline and API-based CASB capabilities
• Integrate DLP, AI security, RBI, and advanced threat protection into its SSE solution
• Provide centralized policy, reporting, and operations for security and IT teams
• Have a credible roadmap to full SASE convergence

How to evaluate SSE platforms: 9 practical steps

Step 1: Align internally on why you’re looking for an SSE platform

What is your organization looking to accomplish with an SSE implementation? Your organization could be looking to reduce security risk, replace an existing VPN, protect SaaS data, or simplify operations.

Once you’ve identified the business drivers of this decision, create clear success criteria for the implementation. Include security outcomes, user experience improvements, operational lift, and time-to-value in your criteria.

This is also a great time to create a list of must-haves for your future SSE vendor, including organization-wide compliance, privacy, data residency, integrations, and inspection requirements.

Step 2: Define your top SSE use cases

What capabilities does your organization need today? List the most important applications (including both third-party and private applications), user groups, and data flows that must work well and integrate smoothly into your SSE implementation from day one. 

Step 3: Establish evaluation criteria

Build a team of stakeholders across your security, network, SecOps, legal, compliance, IT, IAM, and endpoint teams. Then, create a scoring model for vendors with weighted categories based on the priority use cases you identified in the previous step.

Step 4: Conduct exploratory vendor research

Request vendor demos that are tailored to your priority use cases, and ask for customer references in your geography and industry. Make sure to compare vendors on the consistency of their policy model, the amount of visibility their solutions provide, the ease of administration, and the maturity of their integrations.

Step 5: Calculate total cost of ownership

Include licensing, professional services, legacy tool retirement savings, and SecOps efficiency gains in your total cost of ownership (TCO) model.

Step 6: Evaluate the vendor's SASE roadmap

If full SASE convergence is a long-term goal, confirm the vendor has a credible, integrated roadmap that unifies SSE with SD-WAN under a single policy and management plane. Validate near-term milestones, interoperability today, and how the platform avoids reintroducing network-centric complexity.

Step 7: Seek independent validation

Rely on vendor-neutral analyst research such as  Gartner’s Magic Quadrant for SSE, the Forrester Wave for SSE, and peer reviews rather than vendor press releases. Use these sources to benchmark strategy, execution, and customer experience across contenders.

Step 8: Conduct a proof of concept

Once you’ve identified an SSE platform that aligns with your organizational priorities, test it with real users, applications, and realistic traffic. Then, measure outcomes relating to user experience, security control effectiveness, operational effort, and ease of troubleshooting. 

Step 9: Decide on a vendor and a rollout plan

Using the information from your pilot and total cost analysis, choose a SSE platform and negotiate with a clear implementation plan in mind. 

Start your SSE implementation with a controlled pilot rollout, and then continue to implement the solution in waves across your organization. Continually evaluate the platform’s performance, and regularly report on the key success criteria you identified in the first step.

Moving forward with a complete SSE platform

Choosing the right SSE vendor is a strategic decision that involves many criteria and stakeholders. But with the right SSE features, you can reduce risk, simplify operational complexity, and reclaim capital for future innovation. 

And as your organization scales and adopts more sophisticated AI and cloud services, your security architecture will become a growth enabler rather than a blocker.

Ready to evaluate SSE vendors?

Request a demo to see Zscaler SSE in action. 

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