My system was hacked when I exposed it to one of their freelancers from a foreign country. I contacted upwork and they said they would investigate. I supplied them with proof. They said they could not prove the freelancer was involved my system hack even though I had my system running for seven years prior and had not been hacked once, until the day I gave the freelancer access to my system. The freelancer kept oddly stating during the process that my system was not secure, even after I explained to him that the only reason it wasn't "secure" was because I was giving him access!? I believe he was doing this to lay the groundwork for an explanation as to why my system was hacked, once it was hacked (my phone system and associated calling account was drained of funds). So as a way of throwing me a bone, upwork said I could give the freelancer whatever feedback I felt was needed. After serious delays in upwork posting my review of the freelancer, I checked back a month later and found that my feedback was removed. They then stated they cannot have somebody giving negative feedback to one of their good freelancers (meaning one that makes them a lot of money). I noticed numerous other negative feedback scores given to the same freelancers who had their negative feedback details removed. Upwork is protecting a hacker for their own bottom Dollar.