On July 20, WhatsApp users across Pakistan experienced disruptions in sending media files through the app while using mobile data. Despite widespread reports, the Pakistan Telecommunication Authority (PTA) and cellular mobile operators (CMOs) claimed to have received no official complaints.

Users reported being unable to upload media files, such as photos and videos, while connected to mobile data networks. However, when connected to Wi-Fi networks, voice messages and video files could be sent and viewed without issue.

The disruptions were not limited to media files, as users across Pakistan have reported issues accessing WhatsApp since Saturday. Users on mobile internet faced difficulty sending and downloading files, but those using Wi-Fi connections experienced no such problems.

Experts speculate the disruptions might be linked to the suspected installation and testing of a firewall designed to monitor and control internet traffic. Some experts have linked this inaccessibility to the installation of a firewall aimed at curbing the upload of malicious and fake content targeting the government, state, and institutions. However, there has been no official confirmation or explanation from the PTA or the government regarding the disruptions.