“未阅先焚” 2： 微信如何实现实时审查用户对话中的敏感图片
本报告延续上一篇针对微信朋友圈图片过滤技术的研究，分析微信如何在聊天功能中实现实时图片过滤。微信是中国腾讯控股有限公司旗下的即时通讯应用，目前是中国最受欢迎的聊天软件之一，也是全球排名第四的最流行聊天软件。朋友圈是微信上最常用的功能之一，其中图片是用户最期望看到的内容分享形式。
Search Results for: NSO
(Can’t) Picture This 2: An Analysis of WeChat’s Realtime Image Filtering in Chats
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.
The Dangerous Effects of Unregulated Commercial Spyware
In recent days, United Nations Special Rapporteurs have released two revelatory reports that demonstrate the dangerous effects of unchecked technology in the hands of autocrats: one relating to the proliferation and abuse of surveillance software and one that investigates the murder of Washington Post journalist Jamal Khashoggi. Both reports highlight the danger of unaccountable and unregulated surveillance technology sold to countries with egregious human rights records.
Citizen Lab Summer Institute on Monitoring Internet Openness and Rights
UPDATE: The 2019 Citizen Lab Summer Institute will take place on July 31-August 2 at the University of Toronto in Toronto, Canada. The annual Citizen Lab Summer Institute (CLSI) workshop is a meeting place for researchers and practitioners from academia, civil society, and the private sector who are working on Internet openness, security, and rights…. Read more »
Letter to Novalpina Capital Regarding Statement on UN Guiding Principles
18 June 2019 Dear Yana and Stephen Peel, We write to you in light of recent reporting indicating that you both own a stake in Novalpina Capital LLP. As Yana Peel has recently expressed that she believes criticism of NSO Group is “misinformed,” we thought it appropriate to specifically draw Ms. Peel’s attention to the… Read more »
Letter to South Yorkshire Pensions Authority on Novalpina Capital Investment Fund
Given Novalpina Capital’s recent acquisition of NSO Group and the obvious human rights concerns raised by NSO Group’s business practices, Citizen Lab’s Ronald Deibert seeks a response from the South Yorkshire Pensions Authority regarding how its investment in Novalpina is consistent with the Authority’s Policy and what measures were taken by the Authority to inform and educate pension fund contributors and members regarding NSO Group.
Burned After Reading: Endless Mayfly’s Ephemeral Disinformation Campaign
Endless Mayfly is an Iran-aligned network of inauthentic websites and online personas used to spread false and divisive information primarily targeting Saudi Arabia, the United States, and Israel. Using this network as an illustration, this report highlights the challenges of investigating and addressing disinformation from research and policy perspectives.
New York Times: WhatsApp Rushes to Fix Security Flaw Exposed in Hacking of Lawyer’s Phone
A recently discovered security vulnerability on WhatsApp, currently used by over 1.5 billion people worldwide, has been found to have been exploited by NSO Group developed spyware.
A New Age of Warfare: How Internet Mercenaries Do Battle for Authoritarian Governments
A recent New York Times article investigates how authoritarian states target citizens and dissidents with sophisticated spyware, developed within a secretive, multi-billion dollar industry.
Report: Slain Mexican journalist’s widow targeted by spyware
The window of a murdered Mexican journalist was targeted with Pegasus, a spyware product which can secretly access the contents of a phone and turn on its camera and microphone.