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This is the message I get from Bit Defender. Is this a microsoft website, or malware?
msedge.exe attempted to establish a connection relying on an expired certificate to deff.nelreports.net. We blocked the connection to keep your data safe since websites must renew their certificates with a certification authority to stay current, and outdated security certificates represent a risk.
Other issues or features related to Microsoft Edge on Windows 11
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
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MS employee Eric Lawrence (ericlaw) posted here:Thread "What is bzib.nelreports.net and deff.nelreports.net in relation to Microsoft Edge?" page 1: Eric Lawrence (ericlaw)'s reply on November 16, 2023
"This issue was fixed on 11/16 by updating the certificates."
MS employee Eric Lawrence (ericlaw) posted here:Thread "Microsoft Edge is making Suspicious Connection?" page 1: Eric Lawrence (ericlaw)'s reply on November 15, 2023
"*.nelreports.net is a Microsoft domain. Several certificates used on the subdomains of this domain expired last week.
There is no security impact or end-user-impact of the certificate expiration -- Basically, the browser will be unable to submit Network Error Logging reports until the certificate is corrected. Network Error Logging is a HTML5 feature to allow site owners to discover network connectivity problems. https://developer.mozilla.org/en-US/docs/Web/HTTP/Network\_Error\_Logging
Your security software is just announcing "Hey, this certificate is bad", a fact that the browser already was determining on its own, and to which it responds by not connecting to the server in question. The security software provides a redundant warning -- the browser will not use connections with expired or invalid certificates.
The subdomain names are random strings of characters with no particular meaning.
The relevant team has been notified about the certificate expiration and will correct the issue."
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Check your system date and time and make sure they are correct.
Make sure update your Bitdefender.
Are you accessing the correct website?
Are you using any add-ons or extensions?