How can an enterprise enforce access controls and security while facing these common realities? That’s where a SASE platform of WAN capabilities (SD-WAN) and comprehensive security services come in. Cloud-based SASE offers significant benefits to organizations that put aside traditional on-premises enterprise network infrastructure and security to take advantage of cloud services, mobility, and other aspects of digital transformation.
1. Reduced IT Costs and ComplexityAs they work to enable secure access to cloud services, protect remote users and devices, and close other gaps in their security, organizations have adopted a range of security solutions, adding significant costs and management overhead. Even so, the on-premises network security model is simply not effective in a digital world.
Instead of trying to use a legacy concept to solve a modern problem, SASE flips the security model. Rather than focusing on a secure perimeter, SASE focuses on entities, such as users. Based on the concept of edge computing—processing of information close to the people and systems that need it—SASE services push security and access close to users. Using an organization’s security policies, SASE dynamically allows or denies connections to applications and services.
2. Fast, Seamless User ExperienceWhen users were on the network, and IT owned and managed the apps and infrastructure, it was easy to control and predict the user experience. Today, even with distributed multi-cloud environments, many enterprises still use VPNs to connecting users to their networks for security. However, VPNs deliver a poor user experience, and they broaden an organization's attack surface by exposing IP addresses.
Instead of this degradation, SASE provides optimization: It calls for security to be enforced close to what needs securing—instead of sending the user to the security, it sends security to the user. SASE is cloud secure, intelligently managing connections at internet exchanges in real time as well as optimizing connections to cloud applications and services to ensure low latency.
3. Reduced RiskAs a cloud native solution, SASE is designed to address the unique challenges of risk in the new reality of distributed users and applications. By defining security, including threat protection and data loss prevention (DLP), as a core part of the connectivity model, it ensures all connections are inspected and secured, regardless of location, app, or encryption.
A key component of the SASE framework is zero trust network access (ZTNA), which provides mobile users, remote workers, and branch offices with secure application access while eliminating the attack surface and the risk of lateral movement on the network.
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