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Jigsaw (ransomware)
Jigsaw is a form of encrypting ransomware malware created in 2016. It was initially titled "BitcoinBlackmailer", but later came to be known as "Jigsaw" due to featuring an image of Billy the Puppet from the ''Saw'' film franchise. The malware encrypts computer files and gradually deletes them, demanding payment of a ransom to decrypt the files and halt the deletion. History Jigsaw was designed in April 2016 and released a week after creation. It was designed to be spread through malicious attachments in spam emails. Jigsaw is activated if a user downloads the malware program which will encrypt all user files and master boot record. Following this, a popup featuring Billy the Puppet will appear with the ransom demand in the style of ''Saw's'' Jigsaw (one version including the "I want to play a game" line from the franchise) for Bitcoin in exchange for decrypting the files. If the ransom is not paid within one hour, one file will be deleted. Following this for each hour without a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ransomware
Ransomware is a type of malware from cryptovirology that threatens to publish the victim's personal data or permanently block access to it unless a ransom is paid off. While some simple ransomware may lock the system without damaging any files, more advanced malware uses a technique called cryptoviral extortion. It encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them. In a properly implemented cryptoviral extortion attack, recovering the files without the decryption key is an intractable problem – and difficult to trace digital currencies such as paysafecard or Bitcoin and other cryptocurrencies are used for the ransoms, making tracing and prosecuting the perpetrators difficult. Ransomware attacks are typically carried out using a Trojan disguised as a legitimate file that the user is tricked into downloading or opening when it arrives as an email attachment. However, one high-profile example, the WannaCry worm, traveled automat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windows
Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for servers, and Windows IoT for embedded systems. Defunct Windows families include Windows 9x, Windows Mobile, and Windows Phone. The first version of Windows was released on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs). Windows is the most popular desktop operating system in the world, with 75% market share , according to StatCounter. However, Windows is not the most used operating system when including both mobile and desktop OSes, due to Android's massive growth. , the most recent version of Windows is Windows 11 for consumer PCs and tablets, Windows 11 Enterprise for corporations, and Windows Server 2022 for servers. Genealogy By marketing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ransomware
Ransomware is a type of malware from cryptovirology that threatens to publish the victim's personal data or permanently block access to it unless a ransom is paid off. While some simple ransomware may lock the system without damaging any files, more advanced malware uses a technique called cryptoviral extortion. It encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them. In a properly implemented cryptoviral extortion attack, recovering the files without the decryption key is an intractable problem – and difficult to trace digital currencies such as paysafecard or Bitcoin and other cryptocurrencies are used for the ransoms, making tracing and prosecuting the perpetrators difficult. Ransomware attacks are typically carried out using a Trojan disguised as a legitimate file that the user is tricked into downloading or opening when it arrives as an email attachment. However, one high-profile example, the WannaCry worm, traveled automat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malware
Malware (a portmanteau for ''malicious software'') is any software intentionally designed to cause disruption to a computer, server, client, or computer network, leak private information, gain unauthorized access to information or systems, deprive access to information, or which unknowingly interferes with the user's computer security and privacy. By contrast, software that causes harm due to some deficiency is typically described as a software bug. Malware poses serious problems to individuals and businesses on the Internet. According to Symantec's 2018 Internet Security Threat Report (ISTR), malware variants number has increased to 669,947,865 in 2017, which is twice as many malware variants as in 2016. Cybercrime, which includes malware attacks as well as other crimes committed by computer, was predicted to cost the world economy $6 trillion USD in 2021, and is increasing at a rate of 15% per year. Many types of malware exist, including computer viruses, worms, Trojan horses, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Billy The Puppet
Billy (commonly known as Jigsaw or combined name Billy Jigsaw) is a puppet that has appeared in the ''Saw'' franchise. It was used by John "Jigsaw" Kramer to communicate with his test subjects by delivering recorded messages, often appearing on a television screen, or occasionally in person, to describe the details of the traps and the means by which the test subjects could survive. In the film series, before becoming the Jigsaw Killer, John created a puppet similar to Billy to be given as a toy to his unborn child. However, Jill Tuck, his wife, is shown to miscarry after being hit in the stomach by a swinging hospital door due to Cecil Adams ramming it open without looking. John's unresolved anger was likely a primary motive for using a more sinister version of the puppet to convey his instructions to victims of his traps. The traps he created can be seen as a manifestation of his anger with people who he feels do not appreciate having their life, when his unborn baby was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saw (franchise)
''Saw'' is a horror franchise created by Australian film makers James Wan and Leigh Whannell, consisting of nine feature films and additional media. Set in an unnamed city in the United States, the first eight films primarily revolve around the fictional serial killer John "Jigsaw" Kramer, while the ninth movie revolves around a copycat killer while still keeping continuity with the previous films. John Kramer was introduced briefly in ''Saw'' and developed in more detail in ''Saw II'' and the subsequent films. Rather than killing his victims outright, he traps them in life-threatening situations that he calls "tests" or "games" to test their will to survive through physical or psychological torture, believing that if they survive, they will be "rehabilitated". Kramer was killed off in ''Saw III'', but the films continued to focus on his posthumous influence, particularly by his apprentices, and explore his character via flashbacks. In 2003, Wan and Whannell made a short fil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master Boot Record
A master boot record (MBR) is a special type of boot sector at the very beginning of partitioned computer mass storage devices like fixed disks or removable drives intended for use with IBM PC-compatible systems and beyond. The concept of MBRs was publicly introduced in 1983 with PC DOS 2.0. The MBR holds the information on how the disc's sectors are divided into partitions, each partition notionally containing a file system. The MBR also contains executable code to function as a loader for the installed operating system—usually by passing control over to the loader's second stage, or in conjunction with each partition's volume boot record (VBR). This MBR code is usually referred to as a boot loader. The organization of the partition table in the MBR limits the maximum addressable storage space of a partitioned disk to 2 TiB . Approaches to slightly raise this limit assuming 32-bit arithmetics or 4096-byte sectors are not officially supported, as they fatally break co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jigsaw (Saw Character)
John Kramer (colloquially known as "The Jigsaw Killer" or simply "Jigsaw") is a fictional character and the main antagonist of the ''Saw'' franchise. Jigsaw made his debut in the first film of the series, ''Saw'', and appears in all subsequent sequels, with the exception of '' Spiral''. He is portrayed by American actor Tobin Bell. In the series' narrative, John is a former civil engineer dying from an inoperable frontal lobe tumor that had developed from colon cancer. After a suicide attempt, John found a new appreciation for his life, and dedicated the rest of his life to inspiring the same appreciation in others by testing their will to live. His methods include forcing his subjects through deadly scenarios, which he refers to as "games" or "tests", in which they are forced to inflict pain upon themselves or others in order to escape. These tests are typically symbolic of what Jigsaw perceives as a flaw in each person's moral character or life. He was nicknamed "The Jig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bitcoin
Bitcoin ( abbreviation: BTC; sign: ₿) is a decentralized digital currency that can be transferred on the peer-to-peer bitcoin network. Bitcoin transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain. The cryptocurrency was invented in 2008 by an unknown person or group of people using the name Satoshi Nakamoto. The currency began use in 2009, when its implementation was released as open-source software. The word "''bitcoin''" was defined in a white paper published on October 31, 2008. It is a compound of the words ''bit'' and ''coin''. The legality of bitcoin varies by region. Nine countries have fully banned bitcoin use, while a further fifteen have implicitly banned it. A few governments have used bitcoin in some capacity. El Salvador has adopted Bitcoin as legal tender, although use by merchants remains low. Ukraine has accepted cryptocurrency donations to fund the resistance to the 2022 Russ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doxing
Doxing or doxxing is the act of publicly providing personally identifiable information about an individual or organization, usually via the internet. Historically, the term has been used interchangeably to refer to both the aggregation of this information from public databases and social media websites (like Facebook), as well as the publication of previously private information obtained through criminal or otherwise fraudulent means (such as hacking and social engineering). The aggregation and provision of previously published material is generally a legal practice, though it may be subject to laws concerning stalking and intimidation. Doxing may be carried out for reasons such as online shaming, extortion, and vigilante aid to law enforcement. It also may be associated with ''hacktivism''. Etymology "Doxing" is a neologism. It originates from a spelling alteration of the abbreviation "docs", for "documents", and refers to "compiling and releasing a dossier of personal info ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firefox
Mozilla Firefox, or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. It uses the Gecko rendering engine to display web pages, which implements current and anticipated web standards. In November 2017, Firefox began incorporating new technology under the code name "Quantum" to promote parallelism and a more intuitive user interface. Firefox is available for Windows 7 and later versions, macOS, and Linux. Its unofficial ports are available for various Unix and Unix-like operating systems, including FreeBSD, OpenBSD, NetBSD, illumos, and Solaris Unix. It is also available for Android and iOS. However, as with all other iOS web browsers, the iOS version uses the WebKit layout engine instead of Gecko due to platform requirements. An optimized version is also available on the Amazon Fire TV as one of the two main browsers available with Amazon's Silk Browser. Firefox was created in 2002 under ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dropbox (service)
Dropbox is a file hosting service operated by the American company Dropbox, Inc., headquartered in San Francisco, California, U.S. that offers cloud storage, file synchronization, personal cloud, and client software. Dropbox was founded in 2007 by MIT students Drew Houston and Arash Ferdowsi as a startup company, with initial funding from seed accelerator Y Combinator. Dropbox has experienced criticism and generated controversy for issues including security breaches and privacy concerns. Dropbox has been blocked in China since 2014. Concept Dropbox brings files together in one central place by creating a special folder on the user's computer. The contents of these folders are synchronized to Dropbox's servers and to other computers and devices where the user has installed Dropbox, keeping the same files up-to-date on all devices. Dropbox uses a freemium business model, where users are offered a free account with set storage size, with paid subscriptions available that off ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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