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Jan Koum
Jan Borysovych Koum (born February 24, 1976) is a Ukrainian-American billionaire businessman and computer programmer. He is the co-founder and former CEO of WhatsApp, a mobile messaging app which was acquired by Facebook in 2014 for US$19.3 billion. According to ''Forbes'', he has an estimated net worth of US$15.2 billion as of October 2023, making him one of the richest people in the world. Koum was ranked 44th on the Forbes' list of richest Americans in 2023 with a net worth of $15.1 billion. Early life Yan Borysovych Koum was born in Kiev, then in the Ukrainian SSR, on February 24, 1976, into a Jewish family. He grew up in Fastiv. In 1992, at the age of 16, he moved with his mother and grandmother to Mountain View, California. A social support program helped the family get a small two-bedroom apartment there. His father had intended to join the family later, but he never left Ukraine and died in 1997. Koum and his mother remained in touch with his father until his death. At ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kiev
Kyiv, also Kiev, is the capital and most populous List of cities in Ukraine, city of Ukraine. Located in the north-central part of the country, it straddles both sides of the Dnieper, Dnieper River. As of 1 January 2022, its population was 2,952,301, making Kyiv the List of European cities by population within city limits, seventh-most populous city in Europe. Kyiv is an important industrial, scientific, educational, and cultural center. It is home to many High tech, high-tech industries, higher education institutions, and historical landmarks. The city has an extensive system of Transport in Kyiv, public transport and infrastructure, including the Kyiv Metro. The city's name is said to derive from the name of Kyi, one of its four legendary founders. During History of Kyiv, its history, Kyiv, one of the oldest cities in Eastern Europe, passed through several stages of prominence and obscurity. The city probably existed as a commercial center as early as the 5th century. A Slav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Security Testing
Security testing is a process intended to detect flaws in the security mechanisms of an information system and as such help enable it to protect data and maintain functionality as intended. Due to the logical limitations of security testing, passing the security testing process is not an indication that no flaws exist or that the system adequately satisfies the security requirements. Typical security requirements may include specific elements of confidentiality, integrity, authentication, availability, authorization and non-repudiation. Actual security requirements tested depend on the security requirements implemented by the system. Security testing as a term has a number of different meanings and can be completed in a number of different ways. As such, a Security Taxonomy helps us to understand these different approaches and meanings by providing a base level to work from. Confidentiality * A security measure which protects against the disclosure of information to parties o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seed Funding
Seed money, also known as seed funding or seed capital, is a form of securities offering in which an investor puts capital in a startup company in exchange for an equity stake or convertible note stake in the company. The term ''seed'' suggests that this is a very early investment, meant to support the business until it can generate cash of its own (see cash flow), or until it is ready for further investments. Seed money options include friends and family funding, seed venture capital funds, angel funding, and crowdfunding. Usage Traditionally, companies that have yet to meet listing requirements or qualify for bank loans, recognize VC as providers of financial support and value added services. Seed money can be used to pay for preliminary operations such as market research and product development. Investors can be the founders themselves, using savings and loans. They can be family members and friends of the founders. Investors can also be outside angel investors, venture capi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Push Notification
Push technology, also known as server Push, refers to a communication method, where the communication is initiated by a server rather than a client. This approach is different from the "pull" method where the communication is initiated by a client. In push technology, clients can express their preferences for certain types of information or data, typically through a process known as the publish–subscribe model. In this model, a client "subscribes" to specific information channels hosted by a server. When new content becomes available on these channels, the server automatically sends, or "pushes," this information to the subscribed client. Under certain conditions, such as restrictive security policies that block incoming HTTP requests, push technology is sometimes simulated using a technique called polling. In these cases, the client periodically checks with the server to see if new information is available, rather than receiving automatic updates. General use Synchronous c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apple Inc
Apple Inc. is an American multinational corporation and technology company headquartered in Cupertino, California, in Silicon Valley. It is best known for its consumer electronics, software, and services. Founded in 1976 as Apple Computer Company by Steve Jobs, Steve Wozniak and Ronald Wayne, the company was incorporated by Jobs and Wozniak as Apple Computer, Inc. the following year. It was renamed Apple Inc. in 2007 as the company had expanded its focus from computers to consumer electronics. Apple is the largest technology company by revenue, with billion in the 2024 fiscal year. The company was founded to produce and market Wozniak's Apple I personal computer. Its second computer, the Apple II, became a best seller as one of the first mass-produced microcomputers. Apple introduced the Lisa in 1983 and the Macintosh in 1984, as some of the first computers to use a graphical user interface and a mouse. By 1985, internal company problems led to Jobs leavin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
App Store (iOS/iPadOS)
The App Store is an app marketplace developed and maintained by Apple, for mobile apps on its iOS and iPadOS operating systems. The store allows users to browse and download approved apps developed within Apple's iOS SDK. Apps can be downloaded on the iPhone, iPod Touch, or iPad, and some can be transferred to the Apple Watch smartwatch or 4th-generation or newer Apple TVs as extensions of iPhone apps. The App Store opened on July 10, 2008, with an initial 500 applications available. The number of apps peaked at around 2.2 million in 2017, but declined slightly over the next few years as Apple began a process to remove old or 32-bit apps. , the store features more than 1.8 million apps. While Apple touts the role of the App Store in creating new jobs in the "app economy" and claims to have paid over $155 billion to developers, the App Store has also attracted criticism from developers and government regulators that it operates a monopoly and that Apple's 30% cut of revenu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IPhone
The iPhone is a line of smartphones developed and marketed by Apple that run iOS, the company's own mobile operating system. The first-generation iPhone was announced by then–Apple CEO and co-founder Steve Jobs on January 9, 2007, at Macworld 2007, and launched later that year. Since then, Apple has annually released new iPhone models and iOS versions; the most recent models being the iPhone 16 and 16 Plus, alongside the higher-end iPhone 16 Pro and 16 Pro Max, and the lower-end iPhone 16e (which replaces the iPhone SE). As of January 1, 2024, more than 2.3 billion iPhones have been sold, making Apple the largest vendor of mobile phones in 2023. The original iPhone was the first mobile phone to use multi-touch technology. Throughout its history, the iPhone has gained larger, higher-resolution displays, video-recording functionality, waterproofing, and many accessibility features. Up to the iPhone 8 and 8 Plus, iPhones had a single button on the front pane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultimate Frisbee
Ultimate frisbee (officially simply called ultimate) is a non-contact team sport played with a disc flung by hand. Ultimate was developed in 1968 by Joel Silver, Buzzy Hellring, and Jonny Hines in Maplewood, New Jersey. Although ultimate resembles many traditional sports in its athletic requirements, it is unlike most sports due to its focus on self-officiating, even at the highest levels of competition. The term "frisbee" is a registered trademark of the Wham-O toy company, and thus the sport is not formally called "ultimate frisbee", though this name is still in common casual use (and the trademark was licensed to the Ultimate Frisbee Association in 2024). Points are scored by passing the disc to a teammate in the opposing end zone. Other basic rules are that players must not take steps while holding the disc, and interceptions, incomplete passes, and passes out of bounds are turnovers. Rain, wind, or occasionally other adversities can make for a testing match with rapid tu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yahoo!
Yahoo (, styled yahoo''!'' in its logo) is an American web portal that provides the search engine Yahoo Search and related services including My Yahoo, Yahoo Mail, Yahoo News, Yahoo Finance, Yahoo Sports, y!entertainment, yahoo!life, and its advertising platform, Yahoo Native. It is operated by the namesake company Yahoo! Inc. (2017–present), Yahoo! Inc., which is 90% owned by Apollo Global Management and 10% by Verizon. Yahoo was established by Jerry Yang and David Filo in January 1994 and was one of the pioneers of the early Internet era in the 1990s. However, its use declined in the 2010s as some of its services were discontinued, and it lost market share to Facebook and Google. Etymology The word "yahoo" is a backronym for "Yet another, Yet Another Hierarchically Organized Oracle" or "Yet Another Hierarchical Officious Oracle". The term "hierarchical" described how the Yahoo database was arranged in layers of subcategories. The term "oracle" was intended to mean "sourc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brian Acton
Brian Acton (born February 17, 1972) is an American business executive and computer programmer serving as the executive chairperson of Signal Technology Foundation, which he co-founded with Moxie Marlinspike in 2018. Acton also serves as interim chief executive officer (CEO) of Signal Messenger LLC. He was formerly employed at Yahoo!. In 2009, Jan Koum and Acton co-founded WhatsApp, a mobile messaging application which was acquired by Facebook in February 2014 for US$19 billion. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jordan Ritter
Jordan Ritter (born February 1, 1978) is an American serial entrepreneur, software architect and angel investor. He is best known for his work at Napster, the file-sharing service he co-founded along with Shawn Fanning and others. His time at Napster was documented in Joseph Menn's book ''All the Rave: The Rise and Fall of Shawn Fanning's Napster'' and Alex Winter's film Downloaded (film), Downloaded. Early life Jordan Ritter was born in Northridge, California and grew up in Texas and Florida. Ritter skipped the 5th grade when he was 10, and later went on to graduate from the International Baccalaureate Program at Hillsborough High School (Tampa, Florida), Hillsborough High School. Ritter attended college at Lehigh University on scholarship, starting as a sophomore and pursuing a double major in music and computer science. He dropped out in 1998, relocating to Boston, Massachusetts to begin his career in computer security. Career Netect Ritter started out in the computer secur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shawn Fanning
Shawn Fanning (born November 22, 1980) is an American computer programmer, entrepreneur, and angel investor. He developed Napster, one of the first popular peer-to-peer file sharing, peer-to-peer (P2P) file sharing platforms, in 1999. The popularity of Napster was widespread and Fanning was featured on the cover of Time magazine, ''Time'' magazine. The site in its initial free P2P incarnation was shut down in 2001 after the company's unsuccessful appeal of court orders arising from its encouraging the illegal sharing of copyrighted material. A paid subscription version of the site followed, and was purchased by Rhapsody on December 1, 2011. Following his involvement with Napster, he joined, and invested in, a number of early-stage technology startup company, startup companies. Computer career Napster On June 1, 1999, Fanning released a preliminary beta program of Napster and soon, hundreds of college students at Northeastern were trading music. Sean Parker was the co-founder. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
