'Best Security Solution & Service Provider’ DonghoonItech is an IT subsidiary of Donghoon Group with a crucial role in ICT bu ... siness support for various construction projects. It is also our best interest to secure the maximal level of sustainability and visibility by preventing, detecting and responding to critical threats within IT System and Network of our significant customers in Korea. We support to fortify the core business competitiveness of all of our customers by providing the leading security solution with prompt and secure technical service. read more