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15 Essential Things to Know About SIEM

Security information and event management (SIEM) should form the foundation of any organisation’s security strategy. With the ever-increasing threat of attacks and the inevitability of more sophisticated threats on the horizon, businesses need to be prepared. SIEM can detect a targeted attack in its early phases reducing the damage it may cause and buying time for IT teams to mitigate malware. SIEM is a great tool for generating security intelligence by continuously monitoring logs from the entire IT and physical environment. We have been managing SIEM for clients for many years, and we know every trick in the book! Here are Orange Cyberdefense 15 top essentials on what you need to know about SIEM to stay one step ahead on threat detection. Leave a comment and let us know what else you think should be on this list.

  1. SIEM is not just logging. Correlation, real-time alerting and historical data is needed.
  2. Reports are useless. You need real time information if you want to detect threats before they become issues.
  3. It is not only for IT systems. Add in physical access systems, even coffee machines and tills where you use internal payment cards, this way you can tell who is where and correlate with system logins.
  4. The more effort you put into building and setting up the system the more you will get out. You only need to do it once, so get a partner who has done it before to save you learning by (bitter) experience.
  5. IT is not just about real time management, it can help police IT policy and your business as well
  6. Without SIEM your network team cannot see security logs and your server people cannot see network logs, you get the picture. So what? Neither team is able to identify the root cause of a problem, that’s what.
  7. Not all logs are equal, some are more important than others and it is impossible to manually detect the important ones.
  8. It is not about PCI or compliance. Logs have a real value.
  9. It is not just about logs. You need traffic and flow information, process information and file monitoring.
  10. It is not just about real time, it gives the ability to review historical logs in a structured and targeted way.
  11. The more logs you put in the more you get out.
  12. It is impossible to manually review and correlate logs on a time basis. If an event happens and within a period of time another happens, then you report it.
  13. Security experts should be reviewing your alarms. Under-experienced admins can’t be expected to identify a real threat from a false positive.
  14. Threats happen 24×7. Can you react 24×7 or do you need help?
  15. Every single thing that happens on your network is logged. Are you ignoring this information?

To read more on SIEM or to download our free 5 step guide to sorting out SIEM, visit www.SIEMstrategy.com

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