Zero Trust for Mid-size Thai Organizations — Where to Start

Zero Trust is not a single product but an approach built on “never trust, always verify.” For mid-size organizations with limited resources, starting in phases works far better than trying to change everything at once.

Three core principles

Verify identity and device on every access request, grant the least privilege necessary, and design as if an attacker may already be inside.

Phase 1: start with critical apps and users

Pick high-value, high-risk applications such as finance systems, ERP and administrators, and apply Zero Trust controls there first. You see results quickly and can measure ROI clearly.

Integrate your identity provider and enforce MFA

Build on a central identity system such as Azure AD or Google Workspace, enable MFA and apply role-based policies. Identity is the new security perimeter.

Replace broad VPN access with per-app access (ZTNA)

Traditional VPNs often expose the whole network once connected. ZTNA grants access only to the applications a user is authorized for, limiting lateral movement if credentials are stolen and suiting remote work.

Check device posture and monitor continuously

Add device posture, such as an up-to-date OS and a running EDR agent, to access conditions, and collect logs to detect abnormal behavior.

Common mistakes

Trying to change everything at once, ignoring legacy applications, not communicating with users before changes, and not defining success metrics from the start.

A 90-day starter plan

Spend the first 30 days inventorying apps and users, the next 30 integrating the identity provider and enabling MFA, and the final 30 piloting ZTNA with the first critical apps, then review results before expanding.

How Seqrite can help

Seqrite ZTNA provides secure access to business applications based on identity and context, and works with EDR/XDR for visibility across layers. Contact our team to plan a first phase that fits your organization.