SASE stands for Secure Access Service Edge. It is a framework for a network architecture that brings Cloud Security technologies such as SWG, ZTNA, and FWaaS specifically along with a vast area network (WAN) capabilities to connect users securely, and services anywhere.
What does SASE mean?
SASE is the whole framework. It is not a specific technology. The SASE framework is a cloud-based cybersecurity solution that offers "Wan capabilities with network security function to support the dynamic Secure Access need of digital Enterprise." SASE is different from SSE (Security Service Edge), a subset of SASE that offers security services from the SASE cloud platform.
How Does SASE Work?
A SASE combines a Wide area network and multiple security capabilities. Secure Your network traffic using SASE functions. SASE approaches inspection and verification, forward traffic through multiprotocol label switching (MPLS) services to firewalls in data centers, Inspecting the traffic, and then sending it back to users.
What makes SASE stand out from point solutions and the rest of the secure network strategies that are secure and direct. Relying on your data center security, traffic is inspected from the point of a presence nearby to you and sent to its destination from there. SASE is more efficient access to data and makes it better protection in the cloud.
Components of a SASE Model
Basically, SASE Model has six important elements in technologies and capabilities.
- Software-defined Wide area network (SD-WAN)
- Secure web gateway (SWG)
- Cloud Access Security Broker (CASB)
- Centralized Management (CM)
- Zero trust network access (ZTNA)
- Firewall as a Service (FWaaS)
- Software-defined Wide area network (SD-WAN)
SD-WAN is an architecture that optimizes user experience and reduces complexity by choosing the path for internet traffic, Cloud Apps, and data centers as well. It also enables the fast development of new services and apps. It helps users to manage their policies through various locations.
Secure web gateway (SWG)
SWG stops or staves off unsecured traffic getting entered into the user's internal network. It protects users' employees from accessing infected websites, internet-borne viruses, malware, and other cyberthreats.
Cloud Access Security Broker (CASB)
CASB stops or staves off data leaks, malware, noncompliance, and lack of visibility by making sure the safe use of cloud apps. The Cloud apps are Hosted in Public Clouds Infrastructure as a service (IaaS), and Private Clouds (PaaS).
Centralized Management (CM)
CM allows users to do all managing from one console and users can eliminate many different control changes, including Patch management, and policy management as well.
Zero trust network access (ZTNA)
ZTNA Services and products give secure access to remote users to internal apps. With a zero trust model, the Trust of users in their services will never compromise, and privileged access granted on granular policies. It allows remote users to secure connectivity without placing them on the user's network without exposing apps on the internet.
Firewall as a Service (FWaaS)
FWaaS replace physical firewall with cloud firewalls that provide advanced and leat 7 generation firewalls capabilities, including access controls like URL filtering, Threat Prevention, and DNS security.