Elite: Dangerous PvE - Mobius

I was minding my own business in my trading python, in the Mobius Factions group session, flying into Jaque's in the Colonia system, when I was interdicted and ganked by one CMDR *[REDACTED]*. Am I wrong in the belief that PVP is not allowed in that session?

Hi folks, I've now been playing for a few day, so... NOOB! I'm a 59 year old dude, from Australia, living in Brittany, France. I'm working on exploration in a DBX atm, and plan to get into some mining soon, and combat later. I've been well and truly put off PVP in all games because of griefers and t...