Provision of software as a service (SAAS), namely, hosting data manipulation and data management software for use by others for use in the fields of computer security, data exchange, data sharing, data management, data correlation, data integrity, data linking, data matching, data protection, data validation, data enhancement, data augmentation, data supplementation, data verification, data exchange, data attribute monitoring, management of data exchanges, identity management, identity correlation, identity integrity, identity linking, identity matching, identity protection, identity validation, identity enhancement, identity augmentation, identity supplementation, identity verification, identity attribute exchange, identity attribute monitoring, identity attribute enhancement, identity attribute augmentation, identity attribute supplementation, identity attribute verification, management of identity attribute exchanges, management of data exchanges containing identity attributes, information exchange, information sharing, risk management, reputation measurement, trusted transactions, trusted supply chain, and trust measurement; Provision of software as a service (SAAS), namely, software for use in performing contact tracing and public health analytics