markets.books.microsoft

Books is no longer supported and as such MS obviously won't update the certificate

This doesn't stop other software from referencing that site (Doesn't need to be Microsoft even though you're using edge)

but since Books is no longer supported, Bitdefender is correct in blocking it (IT IS NO LONGER SUPPORTED)

Now Microsoft has no power to stop other software from referencing this outdated and unsupported site so stop blaming Microsoft.

A more useful question is "why doesn't Bitdefender highlight the app or origin of the request to access the books site" then you can see where the request is coming from.

My Bitdefender also finds this same URL and blocks it. I have never been to the web site and I don’t understand why Microsoft would use .json after com unless its malware or some type. It would be nice if someone from Microsoft would tell us if .json is suppose to be at the end of their URL.

It IS safe to do so! I ran a scan with Bitdefender after allowing the exception, and no malware was found. Lots of certificates from legitimate websites and links are not updated sometimes. You just  have to research a bit. Microsoft uses that certificate, but apparently haven't updated it. It's used for their apps and programs. I found a Microsoft webpage that explained what that certificate was used for. Only when I allowed that certificate the exception, did my emails in Outlook 365 started coming in. I was frustrated for a week trying to figure out why my emails weren't coming in through 365! That's exactly when the certificate error started showing!. I tried EVERY process I could find to fix Outlook! Apparently, Outlook 365 uses that certificate. 

Outlook runs fantastically now, and there's no ill effects on my system. It's your call.

I agree- it does not seem safe to allow the connection. Can someone help resolve this issue?

Bit Defender says the certificate is expired. ![](https://learn-attachment.microsoft.com/api/attachments/2eca20a6-9ebc-4178-b777-786e3cdd3f3a?platform=QnA