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  2. Ashley Madison data breach - Wikipedia

    en.wikipedia.org/wiki/Ashley_Madison_data_breach

    Computer hacking. In July 2015, an unknown person or group calling itself "The Impact Team" announced they had stolen the user data of Ashley Madison, a commercial website billed as enabling extramarital affairs. The hacker (s) copied personal information about the site's user base and threatened to release users' names and personal identifying ...

  3. 2021 Epik data breach - Wikipedia

    en.wikipedia.org/wiki/2021_Epik_data_breach

    The Epik data breach occurred in September and October 2021, targeting the American domain registrar and web hosting company Epik. The breach exposed a wide range of information including personal information of customers, domain history and purchase records, credit card information, internal company emails, and records from the company's WHOIS ...

  4. List of data breaches - Wikipedia

    en.wikipedia.org/wiki/List_of_data_breaches

    In 2019, a collection of 2.7 billion identity records, consisting of 774 million unique email addresses and 21 million unique passwords, was posted on the web for sale. [5] In January 2024, a data breach dubbed the "mother of all breaches" was uncovered. [6] Over 26 billion records, including some from Twitter, Adobe, Canva, LinkedIn, and ...

  5. Dark web - Wikipedia

    en.wikipedia.org/wiki/Dark_Web

    The dark web is the World Wide Web content that exists on darknets: overlay networks that use the Internet but require specific software, ... Hacking groups and services.

  6. List of security hacking incidents - Wikipedia

    en.wikipedia.org/wiki/List_of_security_hacking...

    The malware destroyed over 35,000 Saudi Aramco computers, affecting business operations for months. December 17: Computer hacker sl1nk announced that he has hacked a total of 9 countries' SCADA systems. The proof includes 6 countries: France, Norway, Russia, Spain, Sweden and the United States.

  7. Website defacement - Wikipedia

    en.wikipedia.org/wiki/Website_defacement

    Website defacement is an attack on a website that changes the visual appearance of a website or a web page. These are typically the work of defacers, who break into a web server and replace the hosted website with malware or a website of their own. Defacement is generally meant as a kind of electronic graffiti and, like other forms of vandalism ...

  8. Hacker - Wikipedia

    en.wikipedia.org/wiki/Hacker

    v. t. e. A hacker is a person skilled in information technology who achieves goals by non-standard means. The term has become associated in popular culture with a security hacker – someone with knowledge of bugs or exploits to break into computer systems and access data which would otherwise be inaccessible to them.

  9. Security hacker - Wikipedia

    en.wikipedia.org/wiki/Security_hacker

    v. t. e. A security hacker is someone who explores methods for breaching defenses and exploiting weaknesses in a computer system or network. [1] Hackers may be motivated by a multitude of reasons, such as profit, protest, information gathering, [2] challenge, recreation, [3] or evaluation of a system weaknesses to assist in formulating defenses ...