abacusID is a Single Sign-On (SSO) add-on service offered by Abacus Group as part of its managed IT services portfolio. It provides centralized identity and access management capabilities, allowing users to authenticate once and gain access to multiple applications and services through a unified login experience. The service is positioned as an add-on to Abacus Group's core managed IT offerings, including abacusFlex and abacusFlex Co-Managed. It is designed to simplify user access management for organizations, reducing the need for multiple sets of credentials across different platforms and applications. abacusID is targeted primarily at financial services and alternative investment firms, which represent Abacus Group's core client base. It complements the broader Abacus security and IT stack, which includes managed detection and response, data loss prevention, microsegmentation, and governance, risk, and compliance services.