Since its inception, Microsoft Defender Antivirus was considered somewhat of a joke by power users. They would assert that it provided you with the protection of an umbrella in a hurricane. While its deficiencies were often exaggerated, indeed, it didn’t give you the same depth and scope as high-quality third-party solutions.
When Bitdefender retired its free antivirus solution in 2021, many turned back to Microsoft Defender. After all, Microsoft should ultimately know the best ways to secure its software. It's surprising it took so long for the company to expand the coverage of its Microsoft Defender line, especially, with the largest share of its revenue being made from intelligent cloud computing.