A new photo editing feature that lets netizens create selfies looking like they’re in the last century has gone viral in China. Picture of My Past Life in Chinese (前世青年照) has collected over 80 million pictures over the past few days, boosting the app behind it, Tiantian P-Tu (天天P图), to the second most popular app on China’s app stores.

Despite its popularity, experts quickly warned that users who upload their pictures to the feature might encounter data security issues. Criticism of the company lies mainly on its failure to ask permission from users before accessing their camera and the possible risks in sharing their pictures.

Tiantian P-Tu, a picture editing app made by WeChat’s creator Tencent, responded quickly today saying that they will neither keep users’s personal data such as the time and place they uploaded the photos, nor store the edited picture.

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Emma Lee

Emma Lee is Shanghai-based tech writer, covering startups and tech happenings in China and Asia in general. We are looking for stories related to tech and China. Reach her at lixin@technode.com.