As a nanny, Sittercity.com takes little to no precaution to protect nannies from scammers that come on the site posting fake jobs. The job offers a large salary and when the nanny contacts the prospective employer, the scammer convinces the nanny to send them money.
I don't want to explain exactly how it's done for fear of giving dishonest, unscrupulous people any ideas. I will say that as an older, experienced nanny, I'm able to spot a scammer immediately. I can't say the same for young, unsuspecting nannies. If I can spot a scammer, so can Sittercity.com, but it appears to me that they just don't care.
As long as they receive their fee for a job post, a scammer can post as many fake jobs as they like.
You don't see the same thing happen on Care.com because they read through every single job posting before they approve it and allow it to run.
Reason of review: Not as described.