A number of credit card companies - almost all of them - ask to "activate" credit cards when sent to me. Usually it involves calling the phone on the sticker and typing in whole or partial card number.
So my question is - what is the purpose of this exercise? It can not be a security measure - anybody who has the card can activate it. It also next to useless as statistics - they have the usage data and I could activate the card and then never use it too.
So, any educated guesses why everybody does it?