Difenda is a Microsoft-focused SecOps-as-a-Service provider headquartered in Oakville, Ontario, Canada. Since 2008, they’ve specialised in designing, implementing, and operating security programs using their modular Difenda Shield platform, delivering continuous monitoring, detection, advisory, and offensive security services to organizations across North America—now operating under the Quorum Cyber brand with expanded capabilities. :contentReference[oaicite:1]{index=1}