Maybe you already have a security information and event management (SIEM) service and you are looking for help managing it. Maybe you are thinking of buying a SIEM and concerned it might be too much to handle on your own. Or maybe you are using a managed security service provider (MSSP) and thinking of gaining more control of your data by working collaboratively in your SIEM rather than letting them do all the work. Here are the most common myths, along with the realities of co-managed security event management.