Global Security as a Service (SECaaS) Market Size study, by Type (Email Encryption, SIEM, Identify and Access Management (IAM), End-Point Protection, Intrusion Detection and Prevention System (IDS/IPS), DLP, Others), by Application (IT & Telecom, BFSI, Retail, Healthcare, Government & Defense, Oil & Gas, Others) and Regional Forecasts 2018-2025