Even if the attorney-client privilege permits disclosure of certain information, another duty may forbid it.
Before a class is certified, defendants should be careful what they say, and how they say it, to unrepresented parties.
When judges accept private employment, when is there an appearance of impropriety in their current cases?
When two clients are racing to be the first to file with the PTO, are you (is your firm?) precluded from representing both of them?