Coming of age is something that you should never do alone. It’s the task of the older sibling to help the younger ones recover from the mistakes they make. Existing and established CSIRT teams have combined their efforts to pave the way for new and future teams by providing materials, guidance and a roadmap. In gaining maturity, self-assessment becomes a necessary and sometimes painful step. That is why those existing and established teams will also benefit from reflecting on their own work.