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The same image viewed by white, blue, green, and red lights reveals different hidden numbers. Steganography (/ ˌ s t ɛ ɡ ə ˈ n ɒ ɡ r ə f i / ⓘ STEG-ə-NOG-rə-fee) is the practice of representing information within another message or physical object, in such a manner that the presence of the concealed information would not be evident to an unsuspecting person's examination.
The Invisible Internet Project (I2P) is an anonymous network layer (implemented as a mix network) that allows for censorship-resistant, peer-to-peer communication. Anonymous connections are achieved by encrypting the user's traffic (by using end-to-end encryption ), and sending it through a volunteer-run network of roughly 55,000 computers ...
Hidden messages on a paper written in invisible ink. Hidden messages distributed, according to a certain rule or key, as smaller parts (e.g. words or letters) among other words of a less suspicious cover text. This particular form of steganography is called a null cipher. Messages written in Morse code on yarn and then knitted into a piece of ...
Contents. Comparison of cross-platform instant messaging clients. The landscape for instant messaging involves cross-platform instant messaging clients that can handle one or multiple protocols. [ 1 ] Clients that use the same protocol can typically federate and talk to one another. The following table compares general and technical information ...
Meta said Wednesday that end-to-end encryption would now be the default setting for messages and calls on Messenger and Facebook, two of the most widely used apps on the internet.. The technology ...
Spy pixels or tracker pixels are hyperlinks to remote image files in HTML email messages that have the effect of spying on the person reading the email if the image is downloaded. [1][2] They are commonly embedded in the HTML of an email as small, imperceptible, transparent graphic files. [3] Spy pixels are commonly used in marketing, and there ...
Facebook's Messenger has long had the option to chat with end-to-end encryption, meaning that your chats are encrypted when they leave your device and until they reach the recipient, keeping them ...
YMSG (Yahoo! Messenger) ^ a b One-to-many / many-to-many communications primarily comprise presence information, publish/subscribe and groupchat distribution. Some technologies have the ability to distribute data by multicast, avoiding bottlenecks on the sending side caused by the number of recipients.