Please be advised that some users may be seeing a certificate issue when attempting to log into the domain or within Outlook for Exchange email users. Our technicians are aware of the issue and are currently working to resolve. No ETA is available at this time. Please check back for updates as we will post them as they are received.
Update 2:38 pm: If asked to accept a certificate, please do so. Despite the warning, this does not mean your device is infected or has been hacked.