A Digital Manhunt: How Chinese Police Track Critics on Twitter and Facebook
The New York Times
Authorities in China have turned to sophisticated investigative software to track and silence obscure critics on overseas social media. Their targets include college students and non-Chinese nationals.
When Jennifer Chen traveled back to her hometown in central China last winter for Lunar New Year, she thought little about Twitter. She had around 100 followers on an account she believed to be anonymous.
While living in China, she retweeted news and videos, and occasionally made comments censored on Chinese platforms, like voicing her support for Hong Kong’s protesters and her solidarity with minorities who have been interned.
It wasn’t much, but it was enough for the authorities to go after her. The police knocked on her parents’ door when she was visiting. She said they had summoned her to the station, questioned her and then commanded her to delete her Twitter posts and account. They continued to track her when she went overseas to study, calling her and her mother to ask if Ms. Chen had recently visited any human rights websites.