1945: Rear Admiral Grace Murray Hopper discovers a moth trapped between relays in a Navy computer. She calls it a "bug," a term used since the late 19th century to refer to problems with electrical devices. Murray Hopper also coined the term "debugging" to describe efforts to fix computer problems.
1949: Hungarian scientist John von Neumann (1903-1957) devises the theory of self-replicating programs, providing the theoretical foundation for computers that hold information in their "memory."
1960: AT&T introduces its Dataphone, the first commercial modem.
1963: Programmers develop the American Standard Code for Information
Interchange (ASCII), a simple computer language that allows machines produced by different manufacturers to exchange data.
1964: AT&T begins monitoring telephone calls to try to discover the identities of "phone freaks," or "phreakers," who use "blue boxes" as tone generators to make free phone calls.The team's surveillance chief tells Newsweek magazine in 1975 that the company monitored 33 million toll calls to find phreakers. AT&Tscores 200 convictions by the time the investigation ends in 1970.
1969: Programmers at AT&T's Bell Laboratories develop the UNIX operating system, the first multi-tasking operating system.
1969: The Advanced Research Projects Agency launches ARPANET, an early network used by government research groups and universities, and the forerunner of the Internet.
1972: John Draper, soon to be known as "Captain Crunch," discovers that the plastic whistle in a box of breakfast cereal reproduces a 2600-hertz tone. With a blue box, the whistle unlocks AT&T's phone network, allowing free calls and manipulation of the network. Among other phreakers of the 1970s is famous future hacker Kevin Mitnick.
1972: Future Apple Computer co-founder Steve Wozniak builds his own "blue box." Wozniak sells the device to fellow University of California-Berkeley students.
1974: Telenet, a commercial version of ARPANET, debuts.
1979: Engineers at Xerox Palo Alto Research Center discover the computer "worm," a short program that scours a network for idle processors. Designed to provide more efficient computer use, the worm is the ancestor of modern worms -- destructive computer viruses that alter or erase data on computers, often leaving files irretrievably corrupted.
1983: The FBI busts the "414s," a group of young hackers who break into several U.S. government networks, in some cases using only an Apple II+ computer and a modem.
1983: University of Southern California doctoral candidate Fred Cohen coins the term "computer virus" to describe a computer program that can "affect other computer programs by modifying them in such a way as to include a (possibly evolved) copy of itself." Anti-virus makers later capitalize on Cohen's research on virus defense techniques.
1984: In his novel, "Neuromancer," author William Gibson popularizes the term "cyberspace," a word he used to describe the network of computers through which characters in his futuristic novels travel.
1986: One of the first PC viruses ever created, "The Brain," is released by programmers in Pakistan.
1988: Twenty-three-year-old programmer Robert Morris unleashes a worm that invades ARPANET computers. The small program disables roughly 6,000 computers on the network by flooding their memory banks with copies of itself. Morris confesses to creating the worm out of boredom. He is fined $10,000 and sentenced to three years' probation.
1991: Programmer Philip Zimmerman releases "Pretty Good Privacy"(PGP), a free, powerful data-encryption tool. The U.S. government begins a three-year criminal investigation on Zimmerman, alleging he broke U.S.encryption laws after his program spread rapidly around the globe. Thegovernment later drops the charges.
1991: Symantec releases the Norton Anti-Virus software.
1994: Inexperienced e-mail users dutifully forward an e-mail warning people not to open any message with the phrase "Good Times" in the subject line. The missive, which warns of a virus with the power to erase a recipient's hard drive, demonstrates the self-replicating power of e-mail virus hoaxes that continue to circulate in different forms today.
1995: Microsoft Corp. releases Windows 95. Anti-virus companies worry that the operating system will be resistant to viruses. Later in the year, however,evolved "macro" viruses appear that are able to corrupt the new Windows operating system.
1998: Intruders infiltrate and take control of more than 500 military,government and private sector computer systems. The incidents -- dubbed "Solar Sunrise" after the well-known vulnerabilities in computers run on the Sun Solaris operating system -- were thought to have originated from operatives in Iraq. Investigators later learn that two California teenagers were behind the attacks. The experience gives the Defense Department its first taste of what hostile adversaries with greater skills and resources would be able to do to the nation's command and control center, particularly if used in tandem with physical attacks.
1999: The infamous "Melissa" virus infects thousands of computers with alarming speed, causing an estimated $80 million in damage and prompting record sales of anti-virus products. The virus starts a program that sends copies of itself to the first 50 names listed in the recipient's Outlook e-mail address book. It also infects Microsoft Word documents on the user's hard drive, and mails them
out through Outlook to the same 50 recipients.
May 2000: The "I Love You" virus infects millions of computers virtually overnight, using a method similar to the Melissa virus. The virus also sends passwords and usernames stored on infected computers back to the virus's author. Authorities trace the virus to a young Filipino computer student, but he goes free because the Philippines has no laws against hacking and spreading computer viruses. This spurs the creation of the European Union's global Cybercrime Treaty.
2000: Yahoo, eBay, Amazon, Datek and dozens of other high-profile Web sites are knocked offline for up to several hours following a series of so-called "distributed denial-of-service attacks." Investigators later discover that the DDOS attacks -- in which a target system is disabled by a flood of traffic from hundreds of computers simultaneously -- were orchestrated when the hackers co-opted powerful computers at the University of California-Santa Barbara.
2001: The "Anna Kournikova" virus, promising digital pictures of the young tennis star, mails itself to every person listed in the victim's Microsoft Outlook address book. This relatively benign virus frightens computer security analysts, who believe it was written using a software "toolkit" that allows even the most inexperienced programmer to create a computer virus.
July 2001: The Code Red worm infects tens of thousands of systems running Microsoft Windows NT and Windows 2000 server software, causing an estimated $2 billion in damages. The worm is programmed to use the power of all infected machines against the White House Web site at apredetermined date. In an ad hoc partnership with virus hunters and technology companies, the White House deciphers the virus's code and blocks traffic as the worm begins its attack.
2001: Debuting just days after the Sept. 11 attacks, the "Nimda" virus infects hundreds of thousands of computers around the world. The virus is considered one of the most sophisticated, with up to five methods of infecting systems and replicating itself.
2001: President Bush appoints Richard Clarke to serve as America's first cybersecurity "czar."
2002: Melissa virus author David L. Smith, 33, is sentenced to 20 months in federal prison.
2002: The "Klez" worm -- a bug that sends copies of itself to all of the e-mail addresses in the victim's Microsoft Outlook directory -- begins its march across the Web. The worm overwrites files and creates hidden copies of the originals. The worm also attempts to disable some common anti-virus products and has a payload that fills files with all zeroes. Variants of the Klez worm remain the most active on the Internet.
2002: A denial-of-service attack hits all 13 of the "root" servers that provide the primary roadmap for almost all Internet communications. Internet users experience no slowdowns or outages because of safeguards built into the Internet's architecture. But the attack -- called the largest ever --raises questions about the security of the core Internet infrastructure.
Jan. 2003: The "Slammer" worm infects hundreds of thousands of computers in less than three hours. The fastest-spreading worm ever wreaks havoc on businesses worldwide, knocking cash machines offline and delaying airline flights.
2004: Vundo, or the Vundo Trojan (also known as Virtumonde or Virtumondo and sometimes referred to as MS Juan) is a Trojan Horse that is known to cause popups and advertising for rogue antispyware programs, and sporadically other misbehavior including performance degradation and denial of service with some websites including Google and Facebook
2005: The Zlob Trojan, also known as Trojan.Zlob, is a trojan horse which masquerades as a required video codec in the form of ActiveX. It was first detected in late 2005
2006: The Nyxem worm was discovered. It spread by mass-mailing. Its payload, which activates on the third of every month, starting on February 3, attempts to disable security-related and file sharing software, and destroy files of certain types, such as Microsoft Office files.
2007: Storm Worm identified as a fast spreading email spamming threat to Microsoft systems. It begins gathering infected computers into the Storm botnet. By around June 30 it had infected 1.7 million computers, and it had compromised between 1 and 10 million computers by September.Thought to have originated from Russia, it disguises itself as a news email containing a film about bogus news stories asking you to download the attachment which it claims is a film.
2008: Torpig, also known as Sinowal and Mebroot, is a Trojan horse that affects Windows, turning off anti-virus applications. It allows others to access the computer, modifies data, steals confidential information (such as user passwords and other sensitive data) and installs more malware on the victim's computer).
2009: Symantec discovered Daprosy Worm. Said trojan worm is intended to steal online-game passwords in internet cafes.
2010: Stuxnet, a Windows trojan, was detected. It is the first worm to attack SCADA systems. Some suggest targets Iranian nuclear facilities. It uses a valid certificate fromRealtek.
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