The myth of co-managed SIEMs

This Expel blog post debunks five common myths about co-managed SIEMs — including assumptions about transparency, unique detection value, expert assistance, and complete data availability — and explains practical realities such as shared responsibilities, data ingestion challenges, the benefits of provider expertise, and the risk of "too many cooks in the kitchen." It advises organizations to evaluate whether a co-managed model meets their needs, consider alternative approaches (like MSSPs or direct cloud integrations), and prioritize clear roles and transparency to get value from SIEM investments.