Secure Access Service Edge (SASE) is an all-encompassing term for a software platform that enables edge security. SASE is entirely cloud-native and cloud-run, though it can service on-prem networks as well. It delivers a wide access network (WAN) and security controls directly to end-users wherever they are on the network, even if they’re on the furthest edge of the network, from which the platform gets its name. Essentially, SASE provides safe, secure, and reliable internet access to your end-users while protecting your company and its data in one fell swoop. This is all performed regardless of user location or device type. SASE is enforced through a number of pre-set (either default or admin-defined) security policies that stay in place no matter how the user chooses to access their company network.
At a quick glance, SASE provides secure internet access to users who access your network outside of your data center (i.e., positioned on the “edge” of your network), leveraging the above-mentioned features and tools to do so.
What Is Security Access Service Edge?
Security access service edge (SASE) is an amalgamation of cloud security solutions and SD-WAN which is then delivered to users in a network–no matter how far or close to the edge of the network these users may be. Alongside SD-WAN, the security features SASE include are a firewall-as-a-service, secure web gateway, zero-trust access network, and a cloud access security broker. These tools work in tandem to provide secure and strong access to your company network as your users work and operate outside of your company’s traditional data center. It is entirely cloud-native and cloud-run, though it can service on-premise environments.
SASE can not only provide safe, secure, and reliable internet access to your end-users, it can also make sure that your data and network stay protected while your users access it. SASE and security can be enforced through pre-set protocols and security policies, which can either be default or customized that remain rigid and in place no matter the context of who or what is accessing the network.
What Are The Key Features Of SASE?
The main features of SASE are:
- SD-WAN: SD-WAN is a software approach to managing a Wide Area Network that is catered specifically for the cloud. It directs network traffic across the WAN to SaaS and IaaS providers, meaning that those outside of a data center can make a strong and reliable connection.
- Secure Web Gateway (SWG): A SWG acts as a barrier to prevent unauthorized traffic from accessing a network and will be implemented to reside at the edge of the network. It can control network and website access.
- Zero-Trust Network Access (ZTNA): This is a protocol that requires users to login every single time they wish to access a new application. Applications will be hidden from public view, with highly restricted access, to ensure that content and data on these applications stay safe.
- Cloud-Access Security Broker (CASB): This solution protections the connection between users and their devices to the cloud apps they’re connected to. A CASB will act as a security checkpoint and can enforce MFA and single sign-on.
- Firewall-as-a-Service (FWaaS): A FWaaS is a software or cloud-based firewall that can be deployed on cloud infrastructure to safeguard all users, apps, and data.
Do I Need A SASE Solution?
SASE can offer companies plenty of benefits in enhancing network connectivity and security for their users. It is particularly beneficial for sizable and multinational companies or companies with a large number of endpoints that exist outside the traditional on-premise environment, such as retail companies with stores in other locations.
Benefits of SASE include flexible and consistent security, with integrated features such as a next-gen firewall and threat detection and prevention capabilities, reduced complexity, and optimized performance as users should have no problem connecting to the network despite their location. SASE solutions are easily scalable, reduce complexity, and generally give admins and teams better insight and view into the network, its activity, and its users.