Microsoft Defender Review 2025 Update. Microsoft defender is a good, free cybersecurity app that protects your windows pc. Microsoft defender antivirus, formerly windows defender, is an antivirus security solution developed by microsoft and built into windows.
Microsoft continually updates security intelligence in antimalware products to cover the latest threats and to constantly tweak detection logic, enhancing the ability of microsoft defender. Keeping microsoft defender antivirus up to date is critical to assure your devices have the latest technology and features needed to protect against new malware and.