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  2. List of security hacking incidents - Wikipedia

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

    The FBI investigates a breach of security at National CSS (NCSS). The New York Times , reporting on the incident in 1981, describes hackers as [ 15 ] technical experts, skilled, often young, computer programmers who almost whimsically probe the defenses of a computer system, searching out the limits and the possibilities of the machine.

  3. Yahoo! data breaches - Wikipedia

    en.wikipedia.org/wiki/Yahoo!_data_breaches

    The 2013 data breach occurred on Yahoo servers in August 2013 and affected all three billion user accounts. The 2014 breach affected over 500 million user accounts. Both breaches are considered the largest ever discovered and included names, email addresses, phone numbers, birth dates, and security questions—both encrypted and unencrypted ...

  4. Ashley Madison data breach - Wikipedia

    en.wikipedia.org/wiki/Ashley_Madison_data_breach

    The news of the data release compounded his problems with revelations earlier that year about police reports of his sexual misconduct; on 20 August, he admitted he had been unfaithful to his wife. [ 15 ] [ 16 ] The data breach had quickly followed the release of a past police report alleging that he had fondled five underaged girls, including a ...

  5. 2020 United States federal government data breach - Wikipedia

    en.wikipedia.org/wiki/2020_United_States_federal...

    In 2020, a major cyberattack suspected to have been committed by a group backed by the Russian government penetrated thousands of organizations globally including multiple parts of the United States federal government, leading to a series of data breaches. [1] [28] [29] The cyberattack and data breach were reported to be among the worst cyber ...

  6. Data breach - Wikipedia

    en.wikipedia.org/wiki/Data_breach

    Data breach. A data breach, also known as data leakage, is "the unauthorized exposure, disclosure, or loss of personal information ". [1] Attackers have a variety of motives, from financial gain to political activism, political repression, and espionage. There are several technical root causes of data breaches, including accidental or ...

  7. 2014 JPMorgan Chase data breach - Wikipedia

    en.wikipedia.org/.../2014_JPMorgan_Chase_data_breach

    The 2014 JPMorgan Chase data breach was a cyberattack against American bank JPMorgan Chase that is believed to have compromised data associated with over 83 million accounts—76 million households (approximately two out of three households in the country) and 7 million small businesses. [1] The data breach is considered one of the most serious ...

  8. 2022 Optus data breach - Wikipedia

    en.wikipedia.org/wiki/2022_Optus_data_breach

    Home Affairs and Cyber Security Minister Clare O'Neil said Optus was at fault for the attack, refuting Optus's argument the attack was complicated. O'Neil also stated the attack should not have happened, stating: "Responsibility for the security breach rests with Optus[,] and I want to note that the breach is of a nature that we should not expect to see in a large telecommunications provider ...

  9. Office of Personnel Management data breach - Wikipedia

    en.wikipedia.org/wiki/Office_of_Personnel...

    The Office of Personnel Management data breach was a 2015 data breach targeting Standard Form 86 (SF-86) U.S. government security clearance records retained by the United States Office of Personnel Management (OPM). One of the largest breaches of government data in U.S. history, the attack was carried out by an advanced persistent threat based ...