Services connected via single sign-on (SSO) will be primarily affected. 

The following is a list of some examples of these services:

• eduVPN,
• Outlook Web Access (OWA), also known as Webmail,
• UB services,
• SharePoint,
• Login to the University of Siegen website,
• Cisco Webex,
• Downloading Microsoft Office 365,
• Citrix Workspace