Teofanova was born in 1962 and has worked for different newspapers in the course of her career as a journalist, successively, Impuls, Vreme, Dialog and Vrabez newspapers. In 1993 she became editor and reporter for the weekly newspaper 168 Hours, for which she has been working ever since. She is an expert on international issues, having worked on various journalistic projects investigating cross-border issues such as Bulgarian and Serbian drug trafficking syndicates and migration of Bulgarian Turks to Turkey.