Untrusted Certificates?
When I open up my keychain, I saw 13 untrusted certificates, 6 of them is com.apple.ubiquity.ssl-cert, and the other 7 is com.apple.ubiquity.peer-uuid. I also have one unknown certificates. What are these certificates for? Where does it come from? If I delete them, will it cause any problems with my computer?
MacBook Pro, Mac OS X (10.7.3)