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Spam And Open Relay Blocking System
SORBS ("Spam and Open Relay Blocking System") is a list of e-mail servers suspected of sending or relaying spam (a DNS Blackhole List). It has been augmented with complementary lists that include various other classes of hosts, allowing for customized email rejection by its users. History The SORBS DNSbl project was created in November 2001. It was maintained as a private list until 6 January 2002 when the DNSbl was officially launched to the public. The list consisted of 78,000 proxy relays and rapidly grew to over 3,000,000 alleged compromised spam relays. In November 2009 SORBS was acquired by GFI Software, to enhance their mail filtering solutions. In July 2011 SORBS was re-sold to Proofpoint, Inc. DUHL SORBS adds IP ranges that belong to dialup modem pools, dynamically allocated wireless, and DSL connections as well as DHCP LAN ranges by using reverse DNS PTR records, WHOIS records, and sometimes by submission from the ISPs themselves. This is called the DUHL or Dynamic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Company
A public company is a company whose ownership is organized via shares of stock which are intended to be freely traded on a stock exchange or in over-the-counter markets. A public (publicly traded) company can be listed on a stock exchange (listed company), which facilitates the trade of shares, or not (unlisted public company). In some jurisdictions, public companies over a certain size must be listed on an exchange. In most cases, public companies are ''private'' enterprises in the ''private'' sector, and "public" emphasizes their reporting and trading on the public markets. Public companies are formed within the legal systems of particular states, and therefore have associations and formal designations which are distinct and separate in the polity in which they reside. In the United States, for example, a public company is usually a type of corporation (though a corporation need not be a public company), in the United Kingdom it is usually a public limited company (plc), i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yahoo
Yahoo! (, styled yahoo''!'' in its logo) is an American web services provider. It is headquartered in Sunnyvale, California and operated by the namesake company Yahoo! Inc. (2017–present), Yahoo Inc., which is 90% owned by investment funds managed by Apollo Global Management and 10% by Verizon Communications. It provides a web portal, search engine Yahoo! Search, Yahoo Search, and related services, including My Yahoo!, Yahoo! Mail, Yahoo Mail, Yahoo! News, Yahoo News, Yahoo! Finance, Yahoo Finance, Yahoo! Sports, Yahoo Sports and its advertising platform, Yahoo! Native. 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, usage declined in the late 2000s as some services discontinued and it lost market share to Facebook and Google. History Founding In January 1994, Yang and Filo were electrical engineering graduate students at Stanford University, when they created a website named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison Of DNS Blacklists
__NOTOC__ The following table lists technical information for assumed reputable DNS blacklists used for blocking spam. Notes "Collateral listings"—Deliberately listing non-offending IP addresses, in order to coerce ISPs to take action against spammers under their control. "Notifies upon listing"—Warns registrants of listed IP addresses or domains (so registrants can take actions to fix problems). Suspect RBL providers Suspect RBL providers are those who employ well-documented patterns of questionable or reckless practices or have questionable actors based on statements or communications from the RBL's principal management to official forums. These practices usually include acceptance of de-listing payments (also known as ransom payments) - which incentivizes fraud - such as is the case with UCEPROTECT/Whitelisted.org. Often, these RBL providers use circular rhetoric such as "only spammers would claim we are illegitimate" in furtherance of their scheme. These RBL providers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usenet
Usenet () is a worldwide distributed discussion system available on computers. It was developed from the general-purpose Unix-to-Unix Copy (UUCP) dial-up network architecture. Tom Truscott and Jim Ellis conceived the idea in 1979, and it was established in 1980.''From Usenet to CoWebs: interacting with social information spaces'', Christopher Lueg, Danyel Fisher, Springer (2003), , Users read and post messages (called ''articles'' or ''posts'', and collectively termed ''news'') to one or more topic categories, known as newsgroups. Usenet resembles a bulletin board system (BBS) in many respects and is the precursor to the Internet forums that have become widely used. Discussions are threaded, as with web forums and BBSs, though posts are stored on the server sequentially.The jargon file v4.4.7 , Jargon File Archive. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spamhaus
The Spamhaus Project is an international organisation based in the Principality of Andorra, founded in 1998 by Steve Linford to track email spammers and spam-related activity. The name ''spamhaus'', a pseudo-German expression, was coined by Linford to refer to an internet service provider, or other firm, which spams or knowingly provides service to spammers. Anti-spam lists The Spamhaus Project is responsible for compiling several widely used anti-spam lists. Many internet service providers and email servers use the lists to reduce the amount of spam that reaches their users. In 2006, the Spamhaus services protected 650 million email users, including the European Parliament, US Army, the White House and Microsoft, from billions of spam emails a day. Spamhaus distributes the lists in the form of DNS-based Blacklists (DNSBLs) and Whitelists (DNSWLs). The lists are offered as a free public service to low-volume mail server operators on the Internet. Commercial spam filtering servic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SORBS
Sorbs ( hsb, Serbja, dsb, Serby, german: Sorben; also known as Lusatians, Lusatian Serbs and Wends) are a indigenous West Slavic ethnic group predominantly inhabiting the parts of Lusatia located in the German states of Saxony and Brandenburg. Sorbs traditionally speak the Sorbian languages (also known as "Wendish" and "Lusatian"), which are closely related to Czech, Polish, Kashubian, Silesian, and Slovak. Upper Sorbian and Lower Sorbian are officially recognized minority languages in Germany. Due to a gradual and increasing assimilation between the 17th and 20th centuries, virtually all Sorbs also spoke German by the early 20th century. In the newly created German nation state of the late 19th and early 20th centuries, policies were implemented in an effort to Germanize the Sorbs. These policies reached their climax under the Nazi regime, who denied the existence of the Sorbs as a distinct Slavic people by referring to them as "Sorbian-speaking Germans". The communit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port 25 Blocking
Various anti-spam techniques are used to prevent email spam (unsolicited bulk email). No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email ( false positives) as opposed to not rejecting all spam email (false negatives) – and the associated costs in time, effort, and cost of wrongfully obstructing good mail. Anti-spam techniques can be broken into four broad categories: those that require actions by individuals, those that can be automated by email administrators, those that can be automated by email senders and those employed by researchers and law enforcement officials. End-user techniques There are a number of techniques that individuals can use to restrict the availability of their email addresses, with the goal of reducing their chance of receiving spam. Discretion Sharing an email address only among a limited group of correspondents is one way to limit the chance that the address will be "harves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rootkit
A rootkit is a collection of computer software, typically malicious, designed to enable access to a computer or an area of its software that is not otherwise allowed (for example, to an unauthorized user) and often masks its existence or the existence of other software. The term ''rootkit'' is a compound of "root" (the traditional name of the privileged account on Unix-like operating systems) and the word "kit" (which refers to the software components that implement the tool). The term "rootkit" has negative connotations through its association with malware. Rootkit installation can be automated, or an attacker can install it after having obtained root or administrator access. Obtaining this access is a result of direct attack on a system, i.e. exploiting a vulnerability (such as privilege escalation) or a password (obtained by cracking or social engineering tactics like "phishing"). Once installed, it becomes possible to hide the intrusion as well as to maintain privileged acc ... [...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] |
Internet Service Provider
An Internet service provider (ISP) is an organization that provides services for accessing, using, or participating in the Internet. ISPs can be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned. Internet services typically provided by ISPs can include Internet access, Internet transit, domain name registration, web hosting, Usenet service, and colocation. An ISP typically serves as the access point or the gateway that provides a user access to everything available on the Internet. Such a network can also be called as an eyeball network. History The Internet (originally ARPAnet) was developed as a network between government research laboratories and participating departments of universities. Other companies and organizations joined by direct connection to the backbone, or by arrangements through other connected companies, sometimes using dialup tools such as UUCP. By the late 1980s, a process was set in place towa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hotmail
Outlook.com is a webmail service that is part of the Microsoft 365 product family. It offers mail, Calendaring software, calendaring, Address book, contacts, and Task management, tasks services. Founded in 1996 by Sabeer Bhatia and Jack Smith (Hotmail), Jack Smith as Hotmail, it was acquired by Microsoft in 1997 for an estimated $400 million and relaunched as ''MSN Hotmail'', later rebranded to ''Windows Live Hotmail'' as part of the Windows Live suite of products. Microsoft phased out Hotmail in October 2011, relaunching the service as Outlook.com in 2012. History Launch of Hotmail Hotmail service was founded by Sabeer Bhatia and Jack Smith (Hotmail), Jack Smith, and was one of the first webmail services on the Internet along with RocketMail, Four11's RocketMail (later Yahoo! Mail). It was commercially launched on July 4, 1996, symbolizing "freedom" from Internet service provider, ISP-based email and the ability to access a user's inbox from anywhere in the world. The name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
