In 2018, a university student in Jiangsu, China found a loophole in the KFC mobile app.

According to Global Times, Xu, who was studying at a university in Jiangsu discovered loopholes in KFC's mobile app and WeChat account.

According to local media, this involved asking for refund after using a coupon.

Through this loophole, he was able to order meals on KFC for free.

Through this scheme, Xu was able to basically order a meal, and then seek a full refund, while still getting the meal.

Xu then decided to pass on this trick to four other students to help them get free items as well.

According to local media, Xu caused an "economic loss" of more than 58,000 yuan (S$12,000) between April to October 2018 to Yum China Holdings Inc.

Xu was given a two-and-a-half year sentence and fined 6,000 yuan, while the other four were hit with a sentence ranging from 15 months to two years.

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