You will never be contacted by Sony via your PlayStation®3. There are times however when you may be contacted by a member of our LittleBigPlanet Community Team. This is highly rare, and if it happens, we will NEVER ask for your login details.
The only LittleBigPlanet Community Team member that may contact you is Steven Isbell and he uses the following PSN name:
Do not trust anyone else, even if they are called “name_Molecule”.
If you are contacted by someone pretending to be from Sony, or Media Molecule or any other LittleBigPlanet developer, please report them immediately.