The traditional “castle and moat” approach to cybersecurity — where everything inside the network perimeter is trusted — is no longer sufficient in today’s hybrid work environment. Zero Trust Security is rapidly becoming the gold standard for Hong Kong enterprises. Here’s what you need to know.
What Is Zero Trust Security?
Zero Trust is a security framework based on the principle of “never trust, always verify.” Unlike traditional security models that grant broad access once a user is inside the network, Zero Trust requires continuous verification of every user, device, and application — regardless of whether they are inside or outside the corporate network.
Why Zero Trust Is Critical for Hong Kong Businesses
Hong Kong experienced a 30% increase in cyber attacks in 2024, according to the Hong Kong Computer Emergency Response Team Coordination Centre (HKCERT). With the rise of remote work and cloud adoption, the traditional network perimeter has effectively dissolved. Employees access corporate resources from home, coffee shops, and overseas — creating countless potential entry points for attackers.
Core Principles of Zero Trust
1. Verify Explicitly
Always authenticate and authorise based on all available data points, including identity, location, device health, service or workload, data classification, and anomalies.
2. Use Least Privilege Access
Limit user access with just-in-time and just-enough-access (JIT/JEA), risk-based adaptive policies, and data protection. This minimises the blast radius in case of a breach.
3. Assume Breach
Minimise blast radius for breaches and prevent lateral movement by segmenting access by network, user, devices, and application awareness. Encrypt all sessions end to end.
Implementing Zero Trust: A Practical Roadmap
Phase 1 — Identity: Implement Multi-Factor Authentication (MFA) for all users and privileged accounts. This single step can prevent over 99% of account compromise attacks.
Phase 2 — Devices: Ensure all devices accessing corporate resources are managed and compliant. Deploy Mobile Device Management (MDM) solutions to enforce security policies.
Phase 3 — Network: Segment your network to limit lateral movement. Implement micro-segmentation to isolate critical systems and data.
Phase 4 — Applications: Discover all applications in use (including shadow IT) and apply access controls. Move towards a Software-Defined Perimeter (SDP) approach.
Getting Started with Zero Trust
Profolium’s cybersecurity team specialises in helping Hong Kong businesses implement Zero Trust frameworks tailored to their specific needs and budget. Our certified security professionals will conduct a comprehensive security assessment and develop a phased implementation roadmap that minimises disruption to your operations.
Learn more about our Cyber Security services or contact us for a free security consultation.