More and more companies are moving to Single Sign On (SSO) solutions, and for good reasons. SSO bridges the gap users typically face between security and convenience. By having your IT link multiple applications with a SSO solution, there is only one strong passphrase needed to authenticate yourself into said applications. Monitoring can be done by IT to help ensure no one else is accessing your accounts but you. This helps alleviate the pressure on users to have long, strong, unique passphrases for the multiple applications they need to access daily for their work.
Users can secure their account even further by employing multi-factor authentication or password managers. Single Sign On applications are not without their weaknesses; they are still web applications, and with that comes all the security issues web applications face. However, if your company is choosing a well-known provider, chances are they have internal security teams dedicated to hardening their application. Many of them could even have a bug-bounty program, which rewards security researchers from around the globe for reporting vulnerabilities to their team. Despite their potential weaknesses, SSO applications are generally recommended among security professionals since they make it easier for users while still offering improved security through authentication and account change monitoring.