An employee responsible for IT maintenance on a school network has been arrested by police in Busan, South Korea, after harvesting more than 221,000 personal files from nearly 200 school workers, and using them to create deepfaked pornography.

The worker stored photos and videos of female teachers and other members of staff over a four-year period and used the footage to produce deepfake pornographic material

Significantly, the scale of the crime was vast, with 19 schools, 194 victims, and 20 deepfake videos being involved in total, reported The Chosun Daily.

In particular, the contractor, given the name Mr.A, had access to Google Photos and the Korean cloud storage platform Naver Mybox, which became easily accessible.

The vulnerability of staff was exploited, especially when teachers are prone to leaving themselves logged in to office devices and can be easily manipulated during repairs.

The police found that the material hadn’t been distributed online, implying that they were for personal use, but nevertheless superimposed the faces of the staff onto pornographic scenes.

Shocking also was the fact that Mr. A. was covertly spying on staff members, capturing upskirt shots as he performed under-the-desk computer maintenance. He is also facing charges for this.

When the police checked the accused's storage devices, they found a colossal amount of shady material totaling 405GB. Disturbingly, that included child pornography, including sexually abused minors, plus illegal audio and unsolicited deepfake videos.

The crime may have lasted longer than its initial stretch, from July 2021 to September 2025, if it hadn’t been for the fact that Mr. A left his USB device in one of the school’s devices.

This, in turn, led to all his devices being seized, including flash storage devices and several computers, from both work and his home.

The Busan Metropolitan Police Agency advised schools and kindergartens that regularly outsource IT maintenance and repairs to external providers to exercise caution.