It's getting really confusing with these online job offers, including interviews and assignments. Various people are pretending to be recruiters. I've basically stopped answering phone calls, and everything goes to voicemail unless the caller is in my contacts. But that is hard to do if you are looking for a job. Honestly, if you are the target of this type of campaign, as described in this article, there is probably a good chance you will get compromised, even if you are normally careful.