本報告研究蘋果公司對其雷射鐫刻服務的內容審查。蘋果為 AirTag 和 iPad 等產品提供鐫刻服務，讓用戶可以在產品上留下自訂訊息。
Within mainland China, we found that Apple censors political content including broad references to Chinese leadership and China’s political system, names of dissidents and independent news organizations, and general terms relating to religions, democracy, and human rights. And across all six regions, we found that Apple’s content moderation practices pertaining to derogatory, racist, or sexual content are inconsistently applied and that Apple’s public-facing documents failed to explain how it derives their keyword lists.
As part of the Citizen Lab’s research into the security and privacy of applications, we report on issues we discovered with three COVID-related applications in Indonesia and the Philippines – PeduliLindungi, StaySafe PH, and COVID-KAYA.
COVID-KAYA, a platform used by frontline healthcare workers in the Philippines to collect and share COVID-19 cases with the Philippines Department of Health, contained vulnerabilities in both the web and Android apps that allows for unauthorized users to access private data about the app’s users, and potentially patient data.
As a follow-up to our March 2020 report, we conducted daily tests on WeChat and collected 2,174 censored keywords between January to May 2020. This data provides a view into how narratives and messaging on the pandemic are controlled and molded on social media in China.
WeChat communications conducted entirely among non-China-registered accounts are subject to pervasive content surveillance that was previously thought to be exclusively reserved for China-registered accounts.
The analysis of YY and WeChat indicates broad censorship—blocking sensitive terms as well as general information and neutral references—potentially limiting the public’s ability to access information that may be essential to their health and safety.
In this work, we study how Tencent implements image filtering on WeChat. We found that Tencent implements realtime, automatic censorship of chat images on WeChat based on what text is in an image and based on an image’s visual similarity to those on a blacklist. Tencent facilitates this realtime filtering by maintaining a hash index of MD5 hashes of sensitive image files.