Update to Our Customers on ADP
blog.zenefits.com
blog.zenefits.com
It sounds like Zenefits didn't do their due diligence in building ADP integration through official channels (according to the pdf they didn't even attempt to contact ADP for official integration options) and decided to just scrape information off the ADP portal by asking their customers for admin access (a security nightmare waiting to happen)...
I find it especially distasteful that they're now playing victim and trying to spin things around in their favor by using marketing and social media to gain support for their questionable practices.