My son picked up his job on Craigslist, and it's pretty much the only major place left to put classifieds into, so for sure some of your new graduates may be looking for jobs there. I'd think it to be relevant in this case.
Found it on
this blog. Pulled out the relevant bits:
"Stock traders, posing as employees of a fake brokerage firm, stole personal information from individuals who thought they were applying for a job through Craigslist. Applicants were told that they needed to provide personal and financial information to conduct company �background checks�..."
Sigh. The Western Union bit should have been the first sign.