Security Microsoft Examination of 18 antivirus programs shows Microsoft Defender has the highest system load See which ones received perfect scores By Rob Thubron, May 10, 2023, 5:16 AM 32 comments
Security Software Microsoft fixes 5-year-old Windows Defender bug that was killing Firefox performance Too many calls to the Windows kernel were stealing Firefox's thunder By Alfonso Maruccia, April 10, 2023, 9:17 AM 14 comments
Security Microsoft Microsoft Defender caught flagging legit URLs as malicious The false positive-ridden antivirus service has gone mad again... By Alfonso Maruccia, March 30, 2023, 8:08 AM 14 comments
Security Microsoft Microsoft Defender update kills Start Menu shortcuts and program files on Windows "Defender really is the Gift that keeps on giving!" By Alfonso Maruccia, January 16, 2023, 9:11 AM 13 comments
Security Software Microsoft Defender is lacking in offline detection capabilities, says AV-Comparatives Windows' built-in antivirus shines when using the cloud, doesn't without it By Alfonso Maruccia, October 17, 2022, 12:58 PM 16 comments
Security Microsoft Windows 11 to get enhanced phishing protection and more security features Coming later this year By Daniel Sims, April 7, 2022, 8:18 PM 13 comments
Security Microsoft Microsoft Defender gets new functions to fight Log4j New automated tools for discovering and keeping track of vulnerabilities By Daniel Sims, December 29, 2021, 6:53 AM
Security Software Huge ransomware attack hits hundreds of US businesses Asking for up to $5 million in ransom By Matthew Lee, July 3, 2021, 9:34 AM 10 comments
Software Security A vulnerability in Windows Defender went unnoticed for 12 years Microsoft finally patched the bug after researchers found it last fall By Joe White, February 14, 2021, 12:37 PM 24 comments
Software Microsoft Windows Defender is flagging CCleaner as a Potentially Unwanted Application Microsoft doesn't like bundled software By Rob Thubron, August 3, 2020, 5:15 AM 11 comments
Security Software Windows Defender is still one of the best antivirus solutions, independent testing lab says But it's not perfect By Cohen Coberly, October 17, 2019, 5:27 PM 28 comments
Microsoft Software Windows Defender ranked one of the best antivirus solutions According to AV-Test By Rob Thubron, August 12, 2019, 8:46 AM 37 comments
Microsoft Software Windows Defender changes name to Microsoft Defender, coming to the Mac A limited preview is available for businesses By Rob Thubron, March 21, 2019, 8:11 AM
Security Microsoft Microsoft patches critical Malware Protection Engine flaw An attacker could take control of a system and inflict all sorts of harm By Shawn Knight, April 4, 2018, 12:45 PM
Microsoft Security Windows Defender will soon detect, remove cleaner scareware The changes go into effect on March 1 By Shawn Knight, January 31, 2018, 4:52 PM 16 comments
Security Microsoft Microsoft patches critical flaw in Windows Defender The bug has been patched in MsMpEng version 1.1.13903.0 By Jose Vilches, June 28, 2017, 12:34 PM 12 comments
Security Microsoft Windows 10 Fall Creators update brings new advanced security tools Windows Defender is getting more robust tools for security exploit mitigations By David Matthews, June 27, 2017, 8:02 PM
Security Microsoft Microsoft admits that Windows 10 does temporarily disable third-party antivirus software Kaspersky has filed complaints against Microsoft over Windows Defender By Rob Thubron, June 22, 2017, 8:00 AM 11 comments
Security Microsoft Microsoft patches "crazy bad" remote attack vulnerability found in Windows Defender The company responded quickly to the potentially dangerous exploit By Rob Thubron, May 9, 2017, 10:00 AM
Microsoft Security Russia to investigate Microsoft, Kaspersky says Windows Defender is anti-competitive By Rob Thubron, November 14, 2016, 8:30 AM 28 comments
Security Software The harmful code recently found on Lenovo machines is now surfacing in other apps By Justin Kahn, February 23, 2015, 3:45 PM
Microsoft Software Microsoft Security Essentials bombs tests, loses AV-Test certificate By Rick Burgess, November 29, 2012, 12:00 PM 77 comments
Microsoft Software Microsoft Security Essentials 4.0 released, free anti-virus without the nag By Rick Burgess, April 25, 2012, 4:00 PM 33 comments