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I got a phone call from a recruiter for an "IT consulting firm" that wants to set up an interview for me with "HR." He has also sent me an email about this opportunity.
I got a second call, and he asked me about some experience with Windows 7. I said yes, but then he went on to ask me the first 2 digits of my birthday month and day (not year), and then he asked for the last four of my SSN (Social Security Number - US).
I did comply with the birthday, but was wary of giving my SSN over the phone, and questioned him. He said it's to verify my identity, so he can schedule me for an interview. It sounded suspicious, so I told him [as he suggested] to do some research and then get back with him.
I've worked at a bank for 2 years, I know how sensitive the SSN and DOB is. Should I trust this recruiter, or is this a scam?