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That seems to be a typo, it should be microsoft.com for all these hosts.

alpha.telemetry.microsft.com resolves and has Microsoft name servers as SOA. I see no reason to conclude this is a typo. What evidence do you have?

No A or AAAA or CNAME record exists for that name or any of the other microsft.com domains mentioned in the document.

Although alpha.telemetry.microsoft.com doesn't currently exist either, others do, e.g. us.vortex-win.data.microsoft.com resolves to a Microsoft-owned IP address.

It's a mistake in the report.

dnschecker.org says it doesn't

https://www.whois.com/whois/microsft.com

It is owned by Microsoft, registered by MarkMonitor (MarkMonitor is a legit company)

Yes, but just like microsoft.telemetry.elegantcode.com it has no ip address associated with it.

That would be a serious problem in the PDF they published.

I don't know about serious, but it is a problem in the PDF they published.

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