When a colony is created, they get the espionage pts of the master against you, but you don't get your espionage points from the master applied to them.
This means that the colony has an immediate (and potentially very significant) espionage advantage over you for some time.
Edit: Meant colony not vassal.
This means that the colony has an immediate (and potentially very significant) espionage advantage over you for some time.
Edit: Meant colony not vassal.