Microsoft's Learning Centre stated that for many Windows 11 users, Microsoft Defender Antivirus offers adequate protection against everyday threats without needing additional software. This claim was supported by user feedback on social media. However, the article was later removed, and a more balanced message was introduced, acknowledging that while Defender is a strong foundational security measure, third-party tools can provide additional features. Microsoft emphasized that Defender is usually sufficient when Windows 11 has default protections enabled, updates are regularly installed, and software downloads are deliberate.