People say if you get a call from your bank, just ask what's the deal, hang up and call them back to make sure you talk to your bank. While for banks that may b

People say if you get a call from your bank, just ask what's the deal, hang up and call them back to make sure you talk to your bank. While for banks that may be true, a lot of companies outsource their call centers. I once called DHL for a question regarding a package that was on its way to me and the guy asked weird stuff like what my password for their internet portal was and the answers to the security questions to reset it. Of course I didn't answer anything of that and he was getting mad. I ended the call, double checked the number I just called (it was correct) and simply hit redial, ending up at another person that actually just answered my question without asking for all my credentials. After the call I contacted a higher tier level of customer service and it was simply waved off as "There was probably just a misunderstanding". tl;dr even if you hang up incoming calls and call them back (or initially call them without getting called first) you might end up getting scammed.