> You would likely believe it, given the sender ID, wouldn’t you?<p>No. I absolutely don't believe anyone unknown calling me, no matter who he claims to be, or what the CLIP says, unless I can call back to a public number of the institution he claims to represent. CLIP just isn't secure.<p>I choose to risk believing for non-essential things, because security is just not convenient. But banks, government, anything where there's well reported fraud going on regularly,... no way.<p>Calling back is also good, because outgoing calls are automatically recorded by my operator and sent to my email, so if I'm to enter into any agreement, it's better to do it on an outgoing call.