Security News > 2021 > October > SASE emerges as the edge becomes an enterprise focal point

The proper integration of these network and security functions is now commonly referred to as SASE. Necessary WAN edge functions include SD-WAN; routing to communicate with the world outside the WAN fabric; basic security functions to protect the branch from any incoming threats such as a zone-based firewall and segmentation, perhaps IDS/IPS; application and network visibility; and even WAN optimization.

WAN edge functions are married with cloud-delivered security functions that include firewall-as-a-service, a secure web gateway, cloud access security broker, zero-trust network access, data loss prevention, sandboxing, antivirus, intrusion detection and prevention, and more.

Securing the edge to the cloud with SASE. With the increase in remote workers connecting directly to cloud applications, traditional perimeter-based security is insufficient.

The real goal of the SASE architecture is to connect users more intelligently to their applications without compromising any security.

Enhanced, consistent security policy enforcement across the enterprise.

A business might define security and quality-of-service policies to direct Microsoft 365 traffic and unified communications-as-a-service traffic directly to the SaaS provider to minimize delay and provide the best quality of experience for users but then direct Box, Dropbox, Facebook, and LinkedIn traffic first to a cloud-delivered security service before handing off to the SaaS provider.

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