Digital Identity Service Market Size, Share & Industry Analysis, By Type (Identity and Acess management, Digital Verification management, Identity & Biometric, Others), By Authentication Type (Single-factor authentication, Multi-factor authentication), By Enterprise Size (Large enterprises, Small and Medium-sized Enterprises), By Industry (BFSI, Retail and eCommerce, Government and Defense, Healthcare, IT and Telecom) And Regional Forecast, 2026-2034