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  2. Microsoft Defender Antivirus - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Defender_Antivirus

    During a February 2018 "Real-World Protection Test" performed by AV-Comparatives, Windows Defender achieved a 100% detection rate of malicious URL samples, along with 3 false positive results. [76] An AV-TEST test of Windows Defender in October 2019 demonstrated it provides excellent protection both against viruses and 0-day / malware attacks. [77]

  3. Microsoft SmartScreen - Wikipedia

    en.wikipedia.org/wiki/Microsoft_SmartScreen

    According to NSS Labs, Internet Explorer 9 blocked 99% of malware downloads compared to 90% for Internet Explorer 8 that does not have the SmartScreen Application Reputation feature as opposed to the 13% achieved by Firefox, Chrome, and Safari; which all use a Google Safe Browsing malware filter. Opera 11 was found to block just 5% of malware.

  4. Mac Defender - Wikipedia

    en.wikipedia.org/wiki/Mac_Defender

    Mac Defender (also known as Mac Protector, Mac Security, [1] Mac Guard, [2] Mac Shield, [3] and FakeMacDef) [4] is an internet rogue security program that targets computers running macOS. The Mac security firm Intego discovered the fake antivirus software on 2 May 2011, with a patch not being provided by Apple until 31 May. [ 5 ]

  5. macOS malware - Wikipedia

    en.wikipedia.org/wiki/MacOS_malware

    In March 2016 Apple shut down the first ransomware attack targeted against Mac users, encrypting the users' confidential information. [8] It was known as KeRanger.After completing the encryption process, KeRanger demanded that victims pay one bitcoin (about US$400 at the time, about US$57,364.10 as of July 9, 2024) for the user to recover their credentials.

  6. Gatekeeper (macOS) - Wikipedia

    en.wikipedia.org/wiki/Gatekeeper_(macOS)

    Since Mac OS X Snow Leopard, the system keeps two blacklists to identify known malware or insecure software. The blacklists are updated periodically. The blacklists are updated periodically. If the application is blacklisted, then File Quarantine will refuse to open it and recommend that the user drag it to Trash .

  7. Browser hijacking - Wikipedia

    en.wikipedia.org/wiki/Browser_hijacking

    Snap.Do also can download many malicious toolbars, add-ons, and plug-ins like DVDVideoSoftTB, General Crawler, and Save Valet. General Crawler, installed by Snap.do, has been known to use a backdoor process because it re-installs and re-enables itself every time an affected user removes it through their browser(s).

  8. macOS Big Sur - Wikipedia

    en.wikipedia.org/wiki/MacOS_Big_Sur

    The release of Big Sur was the first time the major version number of the operating system had been incremented since the Mac OS X Public Beta in 2000. After sixteen distinct versions of macOS 10 ("Mac OS X"), macOS Big Sur was presented as version 11 in 2020, and every subsequent version has also incremented the major version number, similarly ...

  9. Antivirus software - Wikipedia

    en.wikipedia.org/wiki/Antivirus_software

    Anti-virus programs are not always effective against new viruses, even those that use non-signature-based methods that should detect new viruses. The reason for this is that the virus designers test their new viruses on the major anti-virus applications to make sure that they are not detected before releasing them into the wild. [144]

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