Jeffrey Knockel

Articles

Engrave Condition: Apple’s Political Censorship Leaves Taiwan, Remains in Hong Kong

Since our report in August 2021, we find that Apple has eliminated their Chinese political censorship in Taiwan. However, Apple continues to perform broad, keyword-based political censorship outside of mainland China in Hong Kong, despite human rights groups’ recommendations for American companies to resist blocking content.

「冬奧通」安全分析

「冬奧通」是2022年北京奧運會官方規定與會者必須安裝的一個手機軟件。本研究指出「冬奧通」有一個簡單但後果嚴重的安全漏洞,即其用于加密用戶語音音頻和文件傳輸的加密技術可以輕易被繞過。健康申報表等傳輸詳細護照等個人資料,個人健康信息以及旅遊史等也存在安全漏洞。服務器響應也可以被欺騙,允許攻擊者向用戶顯示虛假指令。

Cross-Country Exposure: Analysis of the MY2022 Olympics App

MY2022, an app mandated for use by all attendees of the 2022 Olympic Games in Beijing, has a simple but devastating flaw where encryption protecting users’ voice audio and file transfers can be trivially sidestepped. Health customs forms which transmit passport details, demographic information, and medical and travel history are also vulnerable. Server responses can also be spoofed, allowing an attacker to display fake instructions to users.

“冬奥通”安全分析

“冬奥通”是2022年北京奥运会官方规定与会者必须安装的一个手机软件。本研究指出“冬奥通”有一个简单但后果严重的安全漏洞,即其用于加密用户语音音频和文件传输的加密技术可以轻易被绕过。健康申报表等传输详细护照等个人资料,个人健康信息以及旅游史等也存在安全漏洞。服务器响应也可以被欺骗,允许攻击者向用户显示虚假指令。

Engrave Danger: An Analysis of Apple Engraving Censorship across Six Regions

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.