In response to performance limitations posed by legacy infrastructure, PT. Sinergi Multi Adi Solusi modernized One of the biggest state-owned Bank’s Web Application Firewall (WAF) environment by deploying an advanced Imperva-based solution. This strategic upgrade strengthened security across both north–south and east–west traffic within the bank’s Data Center, addressing critical vulnerabilities at the application layer. The project included comprehensive hardware deployment, seamless system integration, and thorough formal documentation. Designed for resilience and scalability, the solution introduced high availability, improved traffic segmentation, and enhanced threat visibility—resulting in a significantly fortified security posture for The Bank’s web-facing assets.