Microsoft is continuing its broad ongoing push to contribute with open source projects, joining the newly created Confidential Computing Consortium, an initiative launched by The Linux Foundation which aims to provide better security for data which is actually in use by apps on a computer, or in the cloud (as opposed to at rest, or not being used).
Microsoft is far from alone in this endeavor, and is joined by Intel in the consortium, along with ARM, Baidu, Google Cloud, IBM, Red Hat and other tech giants. (Source: TechRadar)