I got the attached error message yesterday when trying to access the BB via Safari 6.0 on a Mac running OS 10.7.4. I figured something was wonky and went about my day, probably getting more work accomplished than would otherwise have been the case.
Did not have the issue at work on older versions of Safari and Mac OS. Also noticed no time gaps that would have been indicative of an outage for everyone.
Still doing it today. Firefox works on the sample computer that was wonky. My iPhone works.