SIEM: A worthwhile security tool that requires care in use
Conclusion: Many vendors, consultants and managed service providers are pushing ‘security information and event management’ (SIEM) as a panacea to security failings. The intent is correct. Having visibility of what is or has happened in the infrastructure is essential to detecting and responding to intrusions.
What often gets glossed over is that SIEM is a tool, not a complete solution in itself. Deployment requires deep engagement with the IT operations team and a clear vision of what is expected from the SIEM. The vision will be driven by how SIEM will be used, what outcomes would be expected and how its use would evolve over time.
With careful planning prior to deployment, some, if not most, of these issues can be addressed.