What is SASE, and Why Do I Need It?

SASE combines networking and security capabilities into a single, cloud-native, globally distributed architecture. This architecture changes the emphasis of security away from being traffic-flow-centric and more toward being identity-centric. 

Cisco SASE is an umbrella term for a collection of technologies that work together to infuse security into the fabric of the global network. This makes security always available, regardless of the user’s location, the location of the application or resource being accessed, or the combination of transport technologies used to connect the user and the resource. Consolidating all of the networking and security features previously provided by point products is one of the numerous ways SASE may be beneficial. Still, asking why you need a cisco SASE solution? Well, let’s find out the different ways for cisco SASE use cases as you continue to scroll down below!

What is SASE, and Why Do I Need It?

What does SASE means?

Before delving into the particulars of SASE, it is essential to acquire some knowledge about the history of this recently coined word. The strategies and technologies now used in networks cannot provide digital enterprises with the required security and access control levels. These enterprises want their users to have instant uninterrupted access at all times, regardless of the location where those users are situated. The need for a new approach to network security has increased due to an increase in the number of remote users and software-as-a-service (SaaS) applications, data moving from the data center to cloud services, and more traffic going to public cloud services and branch offices than going back to the data center.

The name SASE, which is pronounced “sassy,” refers to the overall framework rather than a particular technology. According to Gartner’s 2019 article statement entitled “The Future of Network Security is in the Cloud,” it portrays the SASE framework is a cloud-based cybersecurity solution that offers “comprehensive WAN capabilities with comprehensive network security functions to support the dynamic, secure access needs of digital enterprises.” Gartner defined the SASE framework as a cloud-based cybersecurity solution that offers “comprehensive WAN capabilities with comprehensive network security functions.” In addition, Gartner defines security service edge (SSE) as a subset of SASE that exclusively focuses on the security services required from a SASE cloud platform. SASE is different from security service edge (SSE), which Gartner describes as a subset of SASE.

How Does Cisco SASE Works?

A software-defined vast area network (SD-WAN) or another wide area network (WAN) is combined in a SASE architecture with different security capabilities (such as cloud access security brokers and anti-malware), safeguarding your network traffic as a result of the combination of all of these activities. Suppose your users are located in the same location as your data center. In that case, traditional methods of inspection and verification, such as routing traffic via a multiprotocol label switching (MPLS) service to the firewalls in your data center, are likely to be successful. “Hairpinning” is an act of forwarding the remote user traffic to your own data center, inspecting it, and sending it back again. This action tends to reduce productivity and harm the end-user experience in today’s connected world, where so many users are located in remote locations such as home offices and other similar settings.

SASE stands out from other secure networking techniques and points solutions because it is both secure and direct. This gives it a competitive advantage. Instead of depending on the security of your data center, traffic coming from your users’ devices is reviewed at a point of presence (also known as an enforcement point) that is located nearby, and then it is transmitted to its final destination from there. This results in more effective access to apps and data, making it a much superior choice when compared to other available options for securing data in the cloud and scattered workforces.

Benefits of Using Cisco SASE

The SASE security paradigm offers your firm a number of potential benefits, including the following:

  •  A cloud-based architecture gives you the ability to create and offer security services such as credential theft protection, data loss prevention, threat prevention, web filtering, and sandboxing, as well as next-generation firewall regulations.
  • You will save money by employing a single platform rather than purchasing and administering many-point products. This will lead to a significant reduction in both expenses and the amount of IT personnel required.
  • Consolidating your security stack into a cloud-based network security service model may help reduce the complexity of your IT infrastructure. This can be accomplished by reducing the number of security products that your IT staff is required to monitor, update, and maintain.
  • Improved performance is possible when using a cloud architecture since it makes it simple to connect to resources located in any location. Apps, the internet, and internal company data are all accessible from anywhere in the world.
  • Zero Trust is an approach to the cloud that uses zero trust to take away any assumptions of trust that are made when people, devices, and applications connect. Whether a user is connected to or disconnected from the business network, a SASE solution will continue to provide comprehensive security for their sessions.
  • You gain from increased security and visibility into your network when the comprehensive content inspection is incorporated into a system that provides SASE functionality.
  • Putting data protection rules into action within the context of a SASE architecture helps prevent unauthorized access to sensitive data as well as its subsequent misuse.

Advantages of Using Cisco SASE

Below is a list of the advantages of using the Cisco SASE

1.) Helps Bring Down Costs While Simplifying Things

  • A single software stack that decreases both CAPex and OPex expenses will replace the appliance sprawl that was previously in place.
  • When backhaul traffic flows are eliminated, transport expenses and data center aggregation are lowered. Additionally, client-to-cloud latency optimization is improved, and the operation of communication networks is streamlined.
  • By protecting DIA, SASE can reduce the cost of private circuits and open up more cost-effective transit options.
  • SASE offers consistent policy enforcement, which helps to minimize the complexity of IT and the stress placed on IT workers.
  • The SaaS methodology used by SASE enables quick expansion as well as cost-effective advancements in technological capabilities.
  • SASE provides models that are simple to acquire, maintain, and run, as well as pricing that is based on the number of users.
  • SASE offers client security across all platforms and operating systems, including Windows, macOS, Linux, and bring-your-own-device (BYOD).

2.) Access is granted with the least amount of privileges.

  • Before enabling a session to begin, SASE applies zero trust principles (ZTNA), which presume an adversarial network and require authentication of all devices and users, as well as checking locations and ensuring that policies are being followed.
  • Access to any asset or resource may be restricted using SASE on the basis of policy, context, and the identities of the user, device, and application.
  • SASE prevents lateral movement of a hacker breach and protects against dangers posed by unmanaged or Internet of Things devices that connect to the network by restricting wide network access based on IP address or location.
  • Allows for the Creation of New Digital Business Scenarios
  • SASE provides safe access no matter where users, workloads, devices, applications, or data are located. This enables secure WFA, quick adoption of SaaS, and adaptable multi-cloud settings.
  • Automated, cloud-delivered SASE facilitates digital transformation without the expense and rigidity of on-premise systems by providing a scalable architecture, using the internet, and removing the need for local storage.
  • SASE is completely software-based, is supplied over the cloud, and easily integrates into already established settings.
  • The SaaS methodology used by SASE enables quick expansion as well as the inexpensive adoption of technological advancements.
  • As a result of SASE’s elimination of forced traffic flows via policy enforcement points, cloud migrations are now able to proceed without being hampered by the normal bottlenecks that are associated with traffic flow.

3.) Ensures Consistent Policy

  • The use of consistent policy enforcement contributes to the increased security provided by a SASE architecture.
  • SASE protects users and assets both on-premises and off-premises by providing a broad variety of unified threat management (UTM) services that can be delivered to any network edge.
  • SASE delivers a safe, consistent client-to-cloud user experience.
  • SASE authorizes connections in a dynamic manner, taking into account authentication, identity, and business requirements.

To sum it up…

The idea that data center-focused security and network architectures have become ineffective is the main principle that underpins the SASE framework. Although SASE has received a lot of attention from service providers and the media that focuses on networking and security, what is most compelling is the main principle that underpins the SASE framework. This concept is not only a slogan used in marketing; the industry as a whole has generally adopted it.

When compared to standard business network security, which links offices together via private networks and directs traffic through secure web gateways and firewalls, what does a SASE solution provide that distinguishes it as being so much more beneficial than the latter?

Gartner suggests that the conventional models of connection and security, which concentrate their attention on the data center, should instead put their attention on the identities of users and devices. “In a contemporary cloud-centric digital organization, people, devices, and the apps they need secure access to are everywhere,” states the paper. To put it another way, the processes, traffic patterns, and use cases that exist now are quite different from those that existed when hub-and-spoke networks were first developed.

Still have questions? You may visit www.thepractical.co.th  to enjoy the full elaboration about Cisco SASE solutions!

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