This document discusses the trend of governments using access restrictions as a policy tool for compliance. It notes that censorship has existed as long as the internet, through methods like the Great Firewall of China. The document examines perspectives from 2011 that viewed access restrictions as minor inconveniences rather than censorship. It analyzes how the UK uses a protective DNS service to block malware while maintaining it is not censorship. Examples from Hong Kong and predictions for other Asian countries show how access restrictions have become mandated under national security laws. The document raises the question of whether similar trends could occur in other countries like the US and Taiwan.
This document discusses security issues related to the Internet of Things (IoT) and smart buildings. It describes the various phases of an IoT system from data collection to delivery. It then discusses security threats in three dimensions: by phase (e.g. data leakage), by architecture (e.g. external attacks), and by component (e.g. sensors). Specific attacks like denial of service attacks and IP spoofing are explained. Finally, the document discusses privacy threats in smart buildings related to user behavior, location privacy from wireless networks and RFID, and visual privacy from video surveillance.
The Internet of Things describes a world in which smart technologies enable objects with a network to communicate with each other and interface with humans effortlessly. This connected world of convenience and technology does not come without its drawbacks, as interconnectivity implies hackability. Security Solutions for Hyperconnectivity and the Internet of Things offers insights from cutting-edge research about the strategies and techniques that can be implemented to protect against cyber-attacks.
This document discusses the technical, legal, and political issues related to combating terrorism on the internet. It notes that terrorists increasingly use the internet and encryption to communicate and spread propaganda. From a technical perspective, challenges include the large and growing amount of data online, anonymity tools like TOR, and the difficulty of regulating content on distributed networks. Legally, countries struggle to balance security, privacy and freedom of expression. Politically, questions arise around jurisdiction, international cooperation, and which entities are responsible when the infrastructure is distributed across borders.
The document summarizes a workshop discussion on the challenges of digital forensics in the cloud computing era. Participants including lawyers, computer scientists, and law enforcement discussed both technical and legal issues. Key technical challenges discussed were that cloud computing data is distributed across networks in various deployment models, requiring different forensic techniques. Additionally, in cloud systems data may not remain in one location as in traditional forensics, and encryption of data in transit and execution makes analysis more difficult. Legal issues around jurisdiction and access to cloud data across international borders were also raised. The group aims to draft a paper further exploring these challenges to digital forensics in light of increased cloud computing.
This document discusses various techniques to minimize transparency in information flow across computer networks. It begins by explaining how digital information is transmitted using the TCP/IP and OSI models. It then discusses tools like packet sniffers that can intercept network traffic. Various attacks that exploit transparency at different layers are described. Virtual private networks (VPNs) are presented as a method to secure information flow at the network layer through encryption. The document demonstrates traffic analysis with and without a VPN and discusses other strategies like Tor onion services and HTTPS. It concludes by addressing frequently asked questions about VPN services.