You may get an "untrusted" or other security warning when visiting Sakai this morning. Nothing is wrong with Sakai, you can safely "accept", "allow" or "add exception" (the language will vary, depending on what web browser you use).
This is caused by a minor issue, and OIRT should fix it relatively quickly. The certificate that Sakai uses to establish secure connections expired over the weekend (this was expected to be addressed in an update to Sakai last week, but technical problems caused a delay).
Connections to Sakai remain secure; apart from the initial warning nothing has changed on Sakai.
[Update - as of 12:30 pm this problem has been fixed]
