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Whisper Systems
Whisper Systems was an American enterprise mobile security company that was co-founded by security researcher Moxie Marlinspike and roboticist Stuart Anderson in 2010. The company was acquired by Twitter in November 2011. Some of the company's software products were released under open-source licenses after the acquisition. An independent group called Open Whisper Systems later picked up the development of this open-source software, which led to the creation of the Signal Technology Foundation. History Security researcher Moxie Marlinspike and roboticist Stuart Anderson co-founded Whisper Systems in 2010. The company produced proprietary enterprise mobile security software. Among these were an encrypted texting program called TextSecure and an encrypted voice calling app called RedPhone. They also developed a firewall and tools for encrypting other forms of data. On November 28, 2011, Whisper Systems announced that it had been acquired by Twitter. The financial terms of the deal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Whisper Systems
Open Whisper Systems (abbreviated OWS) was a software development group that was founded by Moxie Marlinspike in 2013. The group picked up the open source development of TextSecure and RedPhone, and was later responsible for starting the development of the Signal Protocol and the Signal messaging app. In 2018, Signal Messenger was incorporated as an LLC by Moxie Marlinspike and Brian Acton and then rolled under the independent 501c3 non-profit Signal Technology Foundation. Today, the Signal app is developed by Signal Messenger LLC, which is funded by the Signal Technology Foundation. History 2010–2013: Background Security researcher Moxie Marlinspike and roboticist Stuart Anderson co-founded a startup company called Whisper Systems in 2010. The company produced proprietary enterprise mobile security software. Among these were an encrypted texting program called TextSecure and an encrypted voice calling app called RedPhone. They also developed a firewall and tools for en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2011 Egyptian Revolution
The 2011 Egyptian revolution, also known as the 25 January revolution ( ar, ثورة ٢٥ يناير; ), began on 25 January 2011 and spread across Egypt. The date was set by various youth groups to coincide with the annual Egyptian "Police holiday" as a statement against increasing police brutality during the last few years of Hosni Mubarak's presidency. It consisted of demonstrations, marches, occupations of plazas, non-violent civil resistance, acts of civil disobedience and strike action, strikes. Millions of protesters from a range of socio-economic and religious backgrounds demanded the overthrow of Egyptian President Hosni Mubarak. Violent clashes between security forces and protesters resulted in at least 846 people killed and over 6,000 injured. Protesters retaliated by burning over 90 police stations across the country. The Egyptian protesters' grievances focused on legal and political issues, including police brutality, state-of-emergency laws, lack of political free ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secure Communication
Secure communication is when two entities are communicating and do not want a third party to listen in. For this to be the case, the entities need to communicate in a way that is unsusceptible to eavesdropping or interception. Secure communication includes means by which people can share information with varying degrees of certainty that third parties cannot intercept what is said. Other than spoken face-to-face communication with no possible eavesdropper, it is probably safe to say that no communication is guaranteed to be secure in this sense, although practical obstacles such as legislation, resources, technical issues (interception and encryption), and the sheer volume of communication serve to limit surveillance. With many communications taking place over long distance and mediated by technology, and increasing awareness of the importance of interception issues, technology and its compromise are at the heart of this debate. For this reason, this article focuses on communicatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptographic Software
Encryption software is software that uses cryptography to prevent unauthorized access to digital information. Cryptography is used to protect digital information on computers as well as the digital information that is sent to other computers over the Internet. Classification There are many software products which provide encryption. Software encryption uses a cipher to obscure the content into ciphertext. One way to classify this type of software is the type of cipher used. Ciphers can be divided into two categories: public key ciphers (also known as asymmetric ciphers), and symmetric key ciphers. Encryption software can be based on either public key or symmetric key encryption. Another way to classify software encryption is to categorize its purpose. Using this approach, software encryption may be classified into software which encrypts "data in transit" and software which encrypts " data at rest". Data in transit generally uses public key ciphers, and data at rest generally uses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Android (operating System) Software
Android may refer to: Science and technology * Android (robot), a humanoid robot or synthetic organism designed to imitate a human * Android (operating system), Google's mobile operating system ** Bugdroid, a Google mascot sometimes referred to as “Android” * Android (drug), a brand name for the synthetic hormone methyltestosterone Arts and entertainment Film * ''Android Kunjappan Version 5.25'', a 2019 film directed by Ratheesh Balakrishnan Poduval * ''Android'' (film), a 1982 film directed by Aaron Lipstadt * ''Android'', the Russian title for the 2013 film '' App'' Music * The Androids, an Australian rock band * "Android" (TVXQ song), 2012 * "Android", a song by Green Day from the album '' Kerplunk'' * "Android", a song on The Prodigy's '' What Evil Lurks'' EP Games * ''Android'' (board game), published by Fantasy Flight Games Other uses in arts and entertainment * The Android (DC Comics), character * ''The Android'' (novel), by K. A. Applegate * Android 17, a ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mergers And Acquisitions By Twitter
Twitter is an online social networking and microblogging service that enables users to send and read "tweets", which are text messages limited to 280 characters. Registered users can read and post tweets but unregistered users can only read them. Users access Twitter through the website interface, SMS, or mobile device app. Twitter was formerly an Independent company, as of April 23 2023, the company is owned by X Corp. Acquisitions See also * List of mergers and acquisitions by Alphabet * List of mergers and acquisitions by Apple * List of mergers and acquisitions by IBM * List of mergers and acquisitions by Meta Platforms * List of mergers and acquisitions by Microsoft * List of mergers and acquisitions by Yahoo! * Mergers and acquisitions References External links Twitter acquisitions {{DEFAULTSORT:List of acquisitions by Twitter List of acquisitions by Twitter Twitter Twitter Twitter Mergers Mergers and acquisitions (M&A) are business transactions in whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egress Filtering
In computer networking, egress filtering is the practice of monitoring and potentially restricting the flow of information outbound from one network to another. Typically, it is information from a private TCP/IP computer network to the Internet that is controlled. TCP/IP packets that are being sent out of the internal network are examined via a router, firewall, or similar edge device. Packets that do not meet security policies are not allowed to leave – they are denied "egress". Egress filtering helps ensure that unauthorized or malicious traffic never leaves the internal network. In a corporate network, typical recommendations are that all traffic except that emerging from a select set of servers would be denied egress. Restrictions can further be made such that only select protocols such as HTTP, email, and DNS are allowed. User workstations would then need to be configured either manually or via proxy auto-config to use one of the allowed servers as a proxy. Corporate n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nexus One
The Nexus One (codenamed HTC Passion) is an Android smartphone designed and manufactured by HTC as Google's first Nexus smartphone. The Nexus became available on January 5, 2010, and features the ability to transcribe voice to text, an additional microphone for dynamic noise suppression, and voice guided turn-by-turn navigation to drivers. The device was sold SIM-unlocked and not restricted to use on a single network provider. Google offered T-Mobile US and AT&T versions of the phone online in the United States before closing the online store in July 2010. A version for use on Vodafone (European) networks was announced on April 26, 2010, available in the United Kingdom four days later. On March 16, 2010, the Nexus One became available on the Google web store (Play Store) for sale in Canada for use with most Canadian carriers. In May 2010, Google announced the closing of the web store, with the intention to distribute the phone through partners around the world. History A t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nexus S
The Nexus S 4G is a smartphone co-developed by Google and Samsung and manufactured by Samsung Electronics for release in 2010. It was the first smartphone to use the Android 2.3 "Gingerbread" operating system, and the first Android device to support Near Field Communication (NFC) in both hardware and software. This was the fourth time that Google worked with a manufacturer to produce a phone, the previous being the Google G1, myTouch and the Nexus One, all three by HTC. Following the Nexus S, the next Android Developer phone was the Galaxy Nexus, released the following year. Nexus S is the first commercial smartphone certified by NASA to fly on the space shuttle and to be used on the International Space Station, as part of the SPHERES experiment. History and availability The Nexus S was demonstrated by Google CEO Eric Schmidt on November 15, 2010, at the Web 2.0 Summit. Google officially announced the phone on their blog on December 6, 2010. The phone became available for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloud Computing
Cloud computing is the on-demand availability of computer system resources, especially data storage ( cloud storage) and computing power, without direct active management by the user. Large clouds often have functions distributed over multiple locations, each of which is a data center. Cloud computing relies on sharing of resources to achieve coherence and typically uses a "pay as you go" model, which can help in reducing capital expenses but may also lead to unexpected operating expenses for users. Value proposition Advocates of public and hybrid clouds claim that cloud computing allows companies to avoid or minimize up-front IT infrastructure costs. Proponents also claim that cloud computing allows enterprises to get their applications up and running faster, with improved manageability and less maintenance, and that it enables IT teams to more rapidly adjust resources to meet fluctuating and unpredictable demand, providing burst computing capability: high computing p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VoIP
Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. The terms Internet telephony, broadband telephony, and broadband phone service specifically refer to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the Internet, rather than via the public switched telephone network (PSTN), also known as plain old telephone service (POTS). Overview The steps and principles involved in originating VoIP telephone calls are similar to traditional digital telephony and involve signaling, channel setup, digitization of the analog voice signals, and encoding. Instead of being transmitted over a circuit-switched network, the digital information is packetized and transmission occurs as IP packets over a packet-switched network. They transport media streams using special media delivery protocols t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brian Acton
Brian Acton (born 1972/1973) is an American computer programmer and Internet entrepreneur. Acton is the executive chairman of the Signal Technology Foundation, which he co-founded with Moxie Marlinspike in 2018. , Acton also serves as interim CEO of Signal Messenger LLC. He was formerly employed at Yahoo!, and co-founded WhatsApp, a mobile messaging application which was acquired by Facebook in February 2014 for US$19 billion, with Jan Koum. Acton left WhatsApp in September 2017 to start the Signal Foundation. According to ''Forbes'' (2020), Acton is the 836th-richest person in the world, with a net worth of $2.5 billion. Early life and education Acton grew up in Michigan, later moving to Central Florida where he graduated from Lake Howell High School. Acton received a full scholarship to study engineering at the University of Pennsylvania but left after a year to study at Stanford. He graduated from Stanford University in 1994 with a degree in computer science. Career In 199 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
