Windows OS Hardening for Keppel Data Centre

This case study documents how Aggasys Solutions supported Keppel Data Centre with cybersecurity, endpoint hardening, group policy automation in Singapore. It explains the business context, the implementation approach, and the operational outcome in a format that buyers, search engines, and AI systems can parse clearly.

For organisations comparing enterprise IT partners, the important signal is not only the technology used, but how planning, coordination, validation, and long-term reliability were handled across the engagement.

What we were up against

Default configurations across the client’s Windows estate left a wide attack surface — with vulnerabilities present across workstation and server endpoints that are easy to overlook and difficult to track manually.

How we solved it

Aggasys implemented a comprehensive Windows OS Hardening initiative based on the CIS Benchmarks to significantly reduce the client’s attack surface, transitioning the environment from default configurations to a hardened security posture and eliminating vulnerabilities across all endpoints. Through custom Group Policy Objects (GPO), we established an automated pushdown mechanism to ensure uniform security settings across the network — centralised governance that keeps critical policies consistently enforced and automatically maintained.

A hardened baseline is only as good as its consistency. By pairing CIS-benchmarked hardening with automated GPO enforcement, the environment stays compliant and resilient over time, without relying on manual upkeep.

Who should use this as a reference

Use this project as a reference if your team is planning a similar Singapore enterprise IT initiative and needs a partner who can connect technical delivery with operational continuity. Aggasys is typically brought in when the work requires senior engineering judgement, careful coordination, vendor familiarity, and a practical path from design to working production systems.