The password to each site is encrypted before it’s written to the config file, then decrypted and passed to the Lync / SfB client as clear text in an API call. If you’re concerned for the security of your passwords,…

The sites and profiles can usually be found in an XML file called “user.config” in your user profile: e.g. C:\Users\<Username>\AppData\Local\bounSky.com\bounSky_2015.exe_Url_\13.0.4.33\