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  2. 2024 CrowdStrike incident - Wikipedia

    en.wikipedia.org/wiki/2024_CrowdStrike_incident

    Faulty CrowdStrike software update. Outcome. ~8.5 million Microsoft Windows operating systems crash worldwide, causing global disruption of critical services. On 19 July 2024, American cybersecurity company CrowdStrike distributed a faulty update to its Falcon Sensor security software that caused widespread problems with Microsoft Windows ...

  3. Transient execution CPU vulnerability - Wikipedia

    en.wikipedia.org/wiki/Transient_execution_CPU...

    Transient execution CPU vulnerabilities are vulnerabilities in a computer system in which a speculative execution optimization implemented in a microprocessor is exploited to leak secret data to an unauthorized party. The archetype is Spectre, and transient execution attacks like Spectre belong to the cache-attack category, one of several ...

  4. Common Vulnerabilities and Exposures - Wikipedia

    en.wikipedia.org/wiki/Common_Vulnerabilities_and...

    The Common Vulnerabilities and Exposures (CVE) system provides a reference method for publicly known information-security vulnerabilities and exposures. [1] The United States' National Cybersecurity FFRDC, operated by The MITRE Corporation, maintains the system, with funding from the US National Cyber Security Division of the US Department of Homeland Security. [2]

  5. WannaCry ransomware attack - Wikipedia

    en.wikipedia.org/wiki/WannaCry_ransomware_attack

    [9] [43] In a controlled testing environment, the cybersecurity firm Kryptos Logic found that it was unable to infect a Windows XP system with WannaCry using just the exploits, as the payload failed to load, or caused the operating system to crash rather than actually execute and encrypt files. However, when executed manually, WannaCry could ...

  6. EternalBlue - Wikipedia

    en.wikipedia.org/wiki/EternalBlue

    EternalBlue[5] is a computer exploit software developed by the U.S. National Security Agency (NSA). [6] It is based on a vulnerability in Microsoft Windows that allowed users to gain access to any number of computers connected to a network. The NSA knew about this vulnerability but did not disclose it to Microsoft for several years, since they ...

  7. PrintNightmare - Wikipedia

    en.wikipedia.org/wiki/PrintNightmare

    PrintNightmare is a critical security vulnerability affecting the Microsoft Windows operating system. [2][5] The vulnerability occurred within the print spooler service. [6][7] There were two variants, one permitting remote code execution (CVE-2021-34527), and the other leading to privilege escalation (CVE-2021-1675). [7][8] A third ...

  8. Meltdown (security vulnerability) - Wikipedia

    en.wikipedia.org/wiki/Meltdown_(security...

    Meltdown exploits a race condition, inherent in the design of many modern CPUs.This occurs between memory access and privilege checking during instruction processing. . Additionally, combined with a cache side-channel attack, this vulnerability allows a process to bypass the normal privilege checks that isolate the exploit process from accessing data belonging to the operating system and other ...

  9. Wi-Fi Protected Access - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi_Protected_Access

    WEP used a 64-bit or 128-bit encryption key that must be manually entered on wireless access points and devices and does not change. TKIP employs a per-packet key, meaning that it dynamically generates a new 128-bit key for each packet and thus prevents the types of attacks that compromised WEP.

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