Technology professionals hoping to come and work in the US face a new privacy concern. Starting December 15, skilled workers on H-1B visas and their families must flip their social media profiles to public before their consular interviews. It’s a deeply risky move from a security and privacy perspective. According to a missive from the US State Department, immigration officers use all available information to vet newcomers for signs that they pose a threat to national security. That includes an “online presence review.” That review now requires not just H-1B applicants but also H-4 applicants (their dependents who want to move with them to the US) to “adjust the privacy settings on all of their social media profiles to ‘public.'” An internal State Department cable obtained by CBS had…