Microsoft Defender is #1 in Top 10 Antivirus Software

Microsoft Defender
Microsoft Defender is working to protect your Windows 10 PC by scanning for malicious software. Microsoft Defender uses real-time protection to scan everything you download or run on your PC. It will turn itself off if you install another antivirus app.

Microsoft Defender video

Positions in ratings

#1 in Top 10 Antivirus Software

#1 in Top 15 Email Security software


The best alternatives to Microsoft Defender are: Webroot, Mcafee, Bitdefender, Norton Antivirus, CrowdStrike, Avast, Kaspersky, Malwarebytes, SentinelOne

Latest news about Microsoft Defender

2021. Microsoft launches Defender for Business

Microsoft has unveiled Microsoft Defender for Business, an innovative and affordable endpoint security solution designed specifically to cater to businesses employing up to 300 individuals. This new offering from Microsoft enhances security measures beyond traditional antivirus systems by providing next-generation protection, endpoint detection and response capabilities, threat and vulnerability management, and more. With simplified configuration and management, along with intelligent and automated investigation and remediation, Defender for Business ensures robust security. It safeguards against a range of cybersecurity threats, including malware and ransomware, across Windows, macOS, iOS, and Android devices. Available as a standalone solution, it can be obtained for a cost of $3 per user per month.

2019. Microsoft Defender comes to Mac

Microsoft Defender Advanced Threat Protection (ATP) will be available for Mac as well. Previously, it served as a Windows solution designed to safeguard the machines of Microsoft 365 subscribers and the assets managed by IT administrators. Formerly known as Windows Defender ATP, Microsoft has decided to drop the "Windows Defender" name since it is now accessible on Mac. Many enterprises utilize a combination of Windows and Mac machines and already equip their employees with Office. By having a security solution that covers both systems, IT departments can significantly simplify their operations, as managing security vulnerabilities on a single system is challenging enough as it is.

2016. Microsoft released Windows Defender Advanced Threat Protection

WDATP is a cloud service offered by Windows Defender, the built-in antivirus in Windows. Currently, Windows Defender primarily focuses on scanning websites and downloads to prevent hacking attempts. However, in the era of social engineering and spear-phishing, antivirus software needs to adopt a more proactive approach. Windows Defender Advanced Threat Protection (WDATP) aims to address this by shifting its attention from monitoring individual files to observing the overall behavior of a machine. Instead of simply searching for specific viruses, WDATP keeps a close watch on symptoms that indicate potential threats. For instance, if a machine starts establishing connections with unusual ports or executing uncommon PowerShell commands—behavior that deviates from the norm for most users—WDAPT alerts administrators. It provides them with an overview of both current and historical machine behavior for further analysis. Moreover, Microsoft is capitalizing on the extensive Windows user base to jumpstart its antivirus program. By analyzing millions of suspicious files from machines worldwide in the cloud, a vast centralized database is being constructed, encompassing not only malicious files but also malicious behavior.