This is a bit odd. Apparently, a judge has ordered a divorcing couple to share each other's Facebook and dating site passwords
with each other, as part of the discovery process for the divorce proceedings. As Kash Hill at Forbes notes in writing about this (link above):
In “normal” discovery, a litigant is usually asked to turn over “responsive material” not the keys to access all that material and more...
I honestly can't figure out why that "normal" route wouldn't make sense here. Why require full access to each others' accounts? As Hill also notes, this certainly violates Facebook's terms of service, and it seems odd that a judge would require users to violate the terms of service. It also seems strange since having such access can lead to additional mayhem as well. Beyond just accessing all sorts of content that may not even be relevant for the case, what happens if one of them contacts someone else using the other's account. It just seems to go way beyond what makes sense.