1. Did you politely explain that you are concerned about all the identity theft you are hearing about AND "could you provide the last four of your SSN or could you give them your driver's license number?
Many employers will listen to your concerns and may very well give you permission to use the last four of your SSN or your driver's license number.
2. Did you ask how old applications are destroyed? If an employer throws out old files, this is a concern because a dumpster diver could find the info and there is a potential to steal your identity. If the employer sends the documents to a shredding company, you might ask if a background check is done on the employees who work for the shredding company. Again, this is a potential problem for an employer should the documents land in the 'wrong hands'.
3. Also, ask why your SSN is needed prior to being hired. Some employers do not realize that they do NOT need a SSN to do a complete background check on a potential employee - they do need your complete legal name(s) and your birthdate, however a SSN is not needed. However, be nice and polite when asking the purpose for the request and do NOT be a smart Alec.
4. For online applications, I ask companies if there is a unique number they can assign since any site can be hacked into.
5. Also, I have asked if I could handle the SSN issue in any other way. I have found employers to be very receptive to my requests.
HOWEVER, today is a 'buyers market' and some employers may not be receptive to your questions. You now have a choice, to fill out what is requested on the application, get the interview and land to job.....or not get the job.
I know of someone who insisted that a prospective employer was not going to be given her SSN. She lost the job opportunity which was not a smart move, especially in today's job market. ASK nicely and EXPLAIN your reasons. A reasonable employer will meet you at least half way. And please do not be a smarty pants because you will not get the job and you will not look professional.