Users have a single logon and password. This requires creation and management of separate user accounts with their own separate passwords.
Users have multiple passwords to synchronize.
Sametime uses Domino security and does not support Windows ACLs. However, this is cumbersome to set up and creates additional administration overhead. Setting the Sametime server to use SSL connections, or to encrypt the network traffic from a Lotus Notes client, does not encrypt the data exchanged in an online meeting or chat session. Users can choose to encrypt data exchanged in an online meeting when a meeting is created, but users may erroneously believe that their session is encrypted, when it is not. Domino chat services are not integrated with Active Directory.