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Firms are no more working out of one single office with all their applications running within the corporate network itself. The employees work from remote locations, the applications run in the cloud and the customers and partners are connected from varied places. This is why the traditional form of perimeter security has become complicated to implement.
Meanwhile, businesses require a secure access process without causing undue complications to employees and the IT department. This is one reason SASE platforms for network protection are gaining attention. By bringing networking and security capabilities together through a cloud-delivered architecture, SASE can provide a more consistent way to secure users, applications, and connections across distributed environments.
What is SASE and How Important is it?
The Secure Access Service Edge framework brings together the features of networking and security into one cloud-based architecture. Unlike traditional frameworks that were designed for securing a centrally located corporate network, SASE enables the provision of security that is closer to end users, devices, applications, and data.
Through its networking and security capabilities, SASE has the ability to simplify the management of distinct network and security frameworks. The services offered are different depending on the platform, but generally aim at providing secure access.
Some important SASE capabilities are:
- SWG – Secure Web Gateway
- ZTNA – Zero Trust Network Access
- CASB – Cloud Access Security Broker
- FWaaS – Firewall as a Service
- Secure SD-WAN
- DLP – Data Loss Prevention
- Security monitoring and policy enforcement
Why Traditional Network Security Is Becoming More Difficult
The conventional network structure was based on the principle of users and applications working in predetermined boundaries where traffic was sent through corporate data centers and protected by firewalls.
Modern networks have become much more decentralized, with employees using SaaS apps from remote locations, customers accessing cloud services, and internal applications being deployed in different cloud environments. Sending all traffic via a central point may be complex and may impact performance. It is also necessary to ensure that security policies are in place for remote access, firewalls, web security, network connectivity, and cloud management – which can lead to fragmented visibility.
SASE solves these issues by integrating network and security solutions through an integrated cloud architecture.
5 Reasons Businesses Are Adopting SASE
1. Supporting Distributed Workforces
Working remotely or in a hybrid setting has altered the ways in which employees can interact with company networks. Security controls are needed that can offer protection to users no matter where they are situated – be it at the company headquarters, home, or somewhere else.
With SASE, it becomes possible to implement security policies via the cloud-based points of presence without having to solely rely on company-owned infrastructure.
Benefit:Â Consistent security for all users.
2. Enhancing Cloud Security
The use of clouds has increased the number of applications and services that an organization needs to secure. There might be the need to control access to SaaS apps, public cloud workloads, private infrastructure, and internal systems concurrently.
The implementation of SASE can assist in the consolidation of security policy across these environments. Rather than regarding cloud access as an exception to network security, it becomes part of a wider security architecture.
Benefit:Â Enhanced security in distributed cloud environments.
3. Easier Security Management
It is common for security professionals to deal with many applications that serve different purposes. Although having specialized applications may help, dealing with different technology solutions could make policy management and troubleshooting more difficult. SASE combines a number of networking and security capabilities in a more consolidated solution.
Benefit: More straightforward security management and policy enforcement.
4. Enabling Fine-Grained Access Control
Contemporary security systems are gradually shifting away from trust policies that automatically assume all the connected devices and users to be safe; SASE follows this trend and implements Zero Trust approach which enables enterprises to assess access permissions according to various parameters, including identity of the user and device,type of the application being used, geographical location, and security policies.
Benefit:Â Fine-grained access control for secure resources.
5. Improved Visibility through the Network
Distributed networks can often create challenges for security teams in comprehending interactions between users, devices, applications, and data.
Centralized policy management and cloud-based security solutions will be helpful in gaining visibility within multiple connections and environments.Higher visibility can assist security teams in identifying abnormal behavior and enforcing policies.
Benefit:Â Quick detection of threats.
Comparison of SASE with Traditional Network Security
| Area | Traditional Approach | SASE Approach |
| Network model | Often centered around corporate infrastructure | Designed for distributed environments |
| Security delivery | Primarily hardware and data-center focused | Primarily cloud delivered |
| Remote users | May require VPN-based access | Can use identity-based secure access |
| Cloud applications | Often managed through separate controls | Integrated into broader security policies |
| Policy management | Multiple security and networking systems | More centralized management |
| Access model | Often network/perimeter oriented | Supports Zero Trust principles |
| Scalability | Can require additional infrastructure | Cloud architecture can support distributed expansion |
The implementation of SASE is not necessarily about organizations having to change all of their existing technologies for security purposes right away. Indeed, it is possible for companies to incorporate capabilities step by step.
What Should Business Consider Before Implementing SASE?
The SASE framework can bring a lot of benefits to businesses, but the decision regarding which platform to implement should not be solely based on features. It is necessary to assess the compatibility of such a platform with your network and security infrastructure. Integration with various elements can play an important role in the process.
Businesses should also take into consideration:
- Security Needs: What security capabilities does the business really need?
- User Distribution: Take into account the locations from where the employees, contractors, and customers would access the resources.
- Application Environment: Map out SaaS, Cloud, Private, and On-premises applications.
- Performance: Take into account the latency and connectivity needs for the mission-critical applications.
- Management: Take into account how policies, alerts, and reporting are going to be managed.
- Scalability: How will the business scale up in the future in terms of geography, user numbers, and cloud environments.
A thoughtfully implemented solution will always be more worthwhile compared to implementing a whole host of capabilities that the business does not even require.
Network Protection Will Become Increasingly Distributed in the Future
The shift towards SASE is also part of a wider transition in enterprise infrastructure. It is not possible to rely on the traditional concept of securing the corporate perimeter since user and application workloads span multiple environments.
In this respect, SASE is an approach that allows you to achieve secure connectivity and security closer to the point of operation. In particular, hybrid working conditions, cloud adoption, and more complex IT environments pose additional challenges, but they can be mitigated through SASE.
It would be wrong to adopt a SASE offering just because of the popularity of the technology category. What businesses need to do is to assess their current architecture, recognize any gaps, and figure out how SASE addresses them.
Frequently Asked Questions
1. What is SASE used for?
SASE is employed for integrating networking with security features via cloud technology. SASE can be employed by organizations in securing their users, devices, applications, and network connections.
2. Is SASE only suitable for large enterprises?
No. SASE may apply to organizations of varying size, especially organizations that have remote employees, cloud apps, many locations, or distributed infrastructure. The choice of architecture will depend on the needs of the organization.
3. How is SASE different from a VPN?
Typically, a traditional VPN will have the capability of providing network-based remote access services, whereas SASE could offer more granular access to applications and other resources based on the identities of users accessing them.
4. Does SASE replace existing cybersecurity tools?
Naturally not. SASE could possibly unify or add to some network and security capabilities, however, it is necessary to analyze the current tech stack before making any decisions regarding replacement or integration.
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