SASE briefs
SASE briefs are in-depth articles that each answer one question about Secure Access Service Edge (SASE). The 19 briefs fall into four topics. Comparisons set SASE against related technologies, and component briefs cover what is inside the architecture. Concept briefs explain the ideas it builds on, and adoption briefs cover how organizations put it into service.
Each brief stands on its own. The guide on the home page explains how the pieces fit together.
- ComparisonSASE vs Zero TrustSASE and Zero Trust are not competing choices. Zero Trust is a security model; SASE is an architecture that delivers it. Compare their scope, identity handling, and enforcement, and see how to adopt both.
- ComparisonSASE vs SaaSSASE vs SaaS explained: SaaS delivers cloud applications, while SASE secures access to them. Compare their purpose, delivery, ownership, and how SASE protects SaaS.
- ComparisonSASE vs SSL VPNSASE vs SSL VPN compared: SSL VPNs tunnel users onto the network, while SASE grants identity-based, least-privilege access to individual applications through ZTNA.
- ComparisonSSE vs CASBSSE vs CASB: a CASB secures cloud apps, while SSE combines a CASB with a secure web gateway and ZTNA. Compare scope, inline vs API, and when to use each.
- ComponentSASE ComponentsThe core SASE components explained: SD-WAN, FWaaS, SWG, CASB, and ZTNA, how they converge into one cloud-delivered service, and which to deploy first.
- ComponentSD-WANHow SD-WAN powers the SASE network layer: what SD-WAN does, how it integrates with SASE security, SD-WAN vs SASE, benefits, and leading vendors.
- ComponentCASBSASE CASB explained: how the Cloud Access Security Broker governs cloud applications inside SASE, its proxy and API deployment modes, four pillars, and Shadow IT discovery.
- ComponentSecure Web GatewayHow a Secure Web Gateway works inside SASE: URL filtering, TLS inspection, and threat protection applied to every user in one pass, plus cloud, on-premises, and hybrid deployment.
- ComponentData Loss PreventionSASE DLP explained: how Data Loss Prevention finds sensitive data in web, cloud, and private app traffic, its detection techniques, compliance role, and integration with CASB and SWG.
- ConceptSASE ArchitectureSASE architecture explained: its layers, how traffic flows, and the four models (cloud-native, hybrid, self-hosted, distributed), and how to choose.
- ConceptZero Trust & SASEZero Trust SASE explained: how a SASE architecture delivers the Zero Trust model, enforcing identity-based, least-privilege access on every session for every user and device.
- ConceptSASE & SSESASE vs SSE explained: Security Service Edge is the security half of SASE without SD-WAN. Compare their components, differences, use cases, and the migration path to full SASE.
- AdoptionSASE DeploymentHow to plan and roll out a SASE architecture: single-vendor, dual-vendor, and managed deployment models, rollout steps, prerequisites, common challenges, and success metrics.
- AdoptionUse CasesWhere SASE delivers the most value: remote work, branch connectivity, cloud migration, Zero Trust access, ransomware defense, Shadow IT visibility, third-party access, and industry use cases.
- AdoptionSASE RFP QuestionsA vendor-neutral list of 28 SASE RFP questions in 7 areas, from architecture and security to data handling, operations, and pricing, with why each matters.
- AdoptionManaged SASEManaged SASE explained: what a provider does, how it differs from SASE and an MSSP, its benefits and drawbacks, how to choose a provider, and when outsourcing SASE makes sense.
- AdoptionSASE for MSPsHow managed service providers deliver SASE: multi-tenancy, recurring revenue, platform selection, pricing, client onboarding, and how to build a SASE practice.
- AdoptionSASE for BusinessSASE for business: how a unified networking and security architecture protects users, devices, applications, and data across distributed organizations, and how to adopt it.
- AdoptionSASE for Small BusinessesWhat SASE means for a business under 100 employees: what it replaces, how it's priced, what makes it easy to run, and when to have an MSP deliver it.
New to SASE? Start with the guide.