She told 8world that the freelancer, who is based in the Philippines, posted false content without her permission to attract traffic, and then "blackmailed" her for S$5,000 based on the number of likes.
The freelance social media manager even changed the password to prevent Hujic from logging into her account.
Hujic said she was on a cave exploration trip in Vietnam and had no internet access.
Hujic reportedly hired the freelancer based in the Philippines to manage her social media accounts in March. The freelancer was responsible for all her LinkedIn, and some Instagram posts.
The social media manager was paid a dollar for every like a post received, and was added in a group chat where she shares photos with friends.