It's just the world we live in now. With so many scams and criminals around you just have to be careful thats all.
What always annoy me but i've just had to learn to deal with it, is when you ring up somewhere to deal with an account. You get a automated service where you have to put in your account number, 1st 4th and 6th difit of your pin. Then when you finally get through to someone you need to tell them the last few transactions on the account, your name, address, date of birth, answer to secret question or your password, then repeat your account number to them again, and a million and one other questions before you can actually start on why you phoned in the first place.
Seems very stupid to have to repeat yourself in the first place to get through to the correct person which you very rarely do, then put on hold to a different department, and to go through all of that just to say " can i get another copy of my statement posted out please"
But i would much rather do all of that than have someone scam my account, my identity or god knows what else they have come up with lately.