have some fun with these clowns.
(phone rings)
you: hello?
them: hello, is this so-and-so?
you: (no matter who they ask for) yes.
them: oh, hi, are the last four digits of your social security number 1234?
you: no so fast, let's be secure.
them: sure, we respect privacy here.
you: don't read them off again. do this instead.
them: huh?
you:
add the digits up.
them: huh?
you: sure, like if they are 1234, 1 and 2 is 3, 3 and 3 is 6, 6 and 4 is ten.
them: er, ok
you: so, ten, write it down. that's 1 and 0. Add those up. Now you have 1.
them: er, ok.
you: you do that, tell me the number you get. that way, we're secure.
them: hey, we just want to verify.
you:
no problem, but this way I know it is not identity theft.
them: no.
you: ok, add them up, add again, give me the number.
them: well, ok, I got 4.
you: 4?
them: yes, 4.
you:
well, sorry, you don't want me, wrong answer.
them: are you sure?
you: yes, I can add.
(click)
the secret:
waste their time without refusing to do anything. all calls are timed.