Case Study: HGC Global Communications Limited accelerates Zero Trust and segments high-value assets in 4 months with Illumio

HGC Accelerates Zero Trust Journey With Illumio

HGC Global Communications, a Hong Kong-based fixed-line operator and ICT service provider, accelerated its digital transformation after acquiring Macroview Telecom and appointing a Chief Digital Officer. Facing a distributed workforce, rapid expansion, and increasing environment complexity, HGC needed a Zero Trust strategy—real-time visibility and protection against lateral movement—without adding heavy manual overhead or disrupting reliable connectivity.

HGC selected Illumio Core for micro-segmentation, using its real-time application dependency map and automated policy recommendations to implement a least-privilege, allowlist-based posture. As a result, HGC segmented all high-value assets within four months, replaced ten firewalls (cutting hardware costs), reduced operational effort by 25%, and gained scalable, network-agnostic visibility and confidence in their Zero Trust controls.

HGC Global Communications Limited

Jacqueline Teo

Chief Digital Officer