Because these sites have no privacy policy (SSL certificates are often fake or absent), any data you type (including search queries or emails) is sent in plain text, visible to hackers on public Wi-Fi.
: Users on forums like Quora (1.5.7) frequently warn that these types of free download sites can expose devices to malware and viruses. Experts recommend using a VPN if accessing such sites, although official platforms are always safer. ssrmovie.org