In our 11-criterion evaluation of cybersecurity incident response services providers, we identified the 15 most significant ones — Aon, Booz Allen Hamilton, CrowdStrike, Cylance, Deloitte, EY, FireEye, IBM, KPMG, NCC Group, Optiv, PwC, Secureworks, Trustwave, and Verizon — and researched, analyzed, and scored them. This report shows how each provider measures up and helps security and risk professionals select the right one for their needs.