I called Transunion to inquire about an address I did not recognize on a credit report they mailed to my home. They asked me for my social security number? The report came with a file number and I gave them that. I was then repeatedly asked for my social security number which I did NOT feel safe/secure giving to someone not in the United States. I tried to explain that since this document was mailed to my home and it had a " file number '' which should be unique to MY FILE that I should not have to supply my social security number especially to someone who demanded that I give it to them. Why do you still allow this or any company to ask for social security numbers to verify IDENTITY?