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Steganography is the art of covered or hidden writing. The purpose of steganography is covert communication-to hide the existence of a message from a third party. This paper is intended as a high-level technical introduction to steganography for those unfamiliar with the field. It is directed at forensic computer examiners who need a practical understanding of steganography without delving into the mathematics, although references are provided to some of the ongoing research for the person who needs or wants additional detail. Although this paper provides a historical context for steganography, the emphasis is on digital applications, focusing on hiding information in online image or audio files. Examples of software tools that employ steganography to hide data inside of other files as well as software to detect such hidden files will also be presented.
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At issue is the 1994 Communications Assistance for Law Enforcement Act (CALEA), a federal law that mandates surveillance backdoors in U.S. telephone networks, allowing the FBI to start listening in on a target's phone calls within minutes of receiving court approval. Last March, the Department of Justice, the FBI and the U.S. Drug Enforcement Administration jointly petitioned the Federal Communications Commission (FCC) for a ruling that cable modem companies and other broadband providers are also covered by the law.
They've secured a world-leading speaker line-up...I guess it's easier to secure such a distinguished line-up when you're asking the speakers to only take 60 minutes out of their schedule, not 5 days!!!