SASE: Modernising Network Security
The convergence of security and networking
For most companies, today's business world is characterised by the prevalence of remote working, an expanding international footprint and an increase in the adoption of Software as a Service (SaaS) solutions. These circumstances bring several obstacles to ensuring secure networks and smooth connectivity. Secure Access Service Edge (SASE) is a comprehensive approach to address these challenges effectively, transforming the IT network infrastructure of many companies.
How long can legacy perimeter systems remain relevant?
The threat landscape has been evolving at a sustained tempo over the past decade and attackers have demonstrated their ability to ingeniously circumvent security measures to exploit existing vulnerabilities in organisations’ network infrastructures. In the meantime, defenders have put considerable effort into in remediating gaps in their (often inherited) legacy systems. While traditional architectures have incorporated numerous security concepts over the years, they have become increasingly complex to manage. Did we reach a breaking point then?
Potentially. The proliferation of cloud-based applications and the emergence of a hybrid workforce have fundamentally altered our operational methods, necessitating a strategic shift in network security approaches. In this context where the boundaries between the corporate network and public networks are blurred, SASE brings substantial benefits that can help organisations strengthen their posture.
SASE also strongly aligns with the latest industry needs and trends:
- Ability to work securely from anywhere
- Integrated digital workplace & seamless user experience
- Continuous user and device authentication (e.g., in a Zero Trust approach)
- Context-aware conditional access
Key Organisational Challenges
As a result of recent shifts in business practices, societal changes, and the growing availability of cloud solutions, organizations are encountering unprecedented challenges that must be addressed to stay competitive. The challenges below contribute to the diminishing relevance of legacy perimeter systems and drive organisations to pursue network and infrastructure transformations.
How SASE addresses these challenges?
SASE architectures streamline network security and connectivity, enhancing agility and scalability whilst reducing complexity. By converging security and networking into a unified cloud-native platform, SASE offers centralised control, real-time threat protection and secure access, combining the environmental context and the security and compliance policies established by the organization.
SASE Reference Architecture
SASE transforms the way users connect to organisations’ apps and services. It replaces the traditional network access model, creating a cloud-based tunnel between the user and the application. This shift provides secure and distributed access to company resources, regardless of the user’s location, ensuring visibility and centralised management for all user activities.
How can Deloitte help?
Deloitte is a global leader for cybersecurity, as recognised by Gartner, and has the capacity to implement security and risk solutions in breadth and depth. Through our services, we help our clients manage their security and compliance risks in an efficient way. Our clients trust us to provide the following implementation services:
