Predatory journals actively solicit manuscripts from researchers but lack proper peer review and editorial boards. They often publish low-quality papers solely to charge publication fees without providing legitimate scholarly services. Researchers should be wary of these journals as publishing in them can corrupt the academic literature and mislead others about the quality of their work. Various studies have exposed predatory journals by getting computer-generated nonsense papers and unqualified scientists accepted. Scholars can check for warning signs like missing or fake editorial boards, poor website quality, and surprise article fees to identify potentially predatory journals.