How to deal with this warning?

Never had one of these warnings before as far as I can recall. It awaited me when I arrived at my PC this morning. Could someone advise me how to proceed please.I don’t fully understand what a server certificate is, or know the source of the message. I have been using Zoom frequently, the last time two days ago. In plain English is it telling me Zoom has become insecure?
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Security Warning: Untrusted Server CertificateYour connection is not private. Attackers might be tryingto steal your personal or financial information fromZoom.This server could not prove that it is Zoom. Its securitycertificate is from DigiCert ECC Secure Server CA
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Terry

First step is make sure your date an time is set correct as if its wrong the certificate will be out of date

Yes, date and time are correct.

Your not using a VPN which could set location wrong. It is possible the certificate is out of date

Hello @Terrypin,

Have a look at this => Zoom Security Warning: Untrusted Server Certificate

I hope this helps.

Thanks for the link Paul. But I failed at the first hurdle, as I assumed the navigation sequence suggested in the top reply
Go to Firewall > pfBlockerNG > DNSBL > scroll down to the bottom to the Custom Domain Whitelist and whitelist ".zoom.us" Then force a rule update by going to Update > Select 'Force' Option - Reload and run it.
was intended to be used in Win 10 Settings, but clearly not. It seems that 'pfBlockerNG' is a tool intended to be used by System Administrators, and I'm not, nor a techie/programmer - just an experienced end user. Here' s what Google' s first hit told me:

"pfBlockerNG is a package that can be installed in pfSense to provide the firewall administrator with the ability to extend the firewall's capabilities beyond the traditional stateful L2/L3/L4 firewall.13 Jun 2017"

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Anyway, as it appeared to be about 'whitelisting', a term I do understand, I went to Win 10 > All Settings > Windows Security > Firewall & network protection > Allow an app through the Firewall

But Zoom (like most of the entries) was already enabled in both the Private and Public columns.

Any more ideas anyone please?

Terry

Hello @Terrypin,

Terrypin said:

Anyway, as it appeared to be about 'Whitelisting'. I went to Win 10 > All Settings > Windows Security > Firewall & network protection > Allow an app through the Firewall.

But Zoom (like most of the entries) was already enabled in both the Private and Public columns.

OK, it was worth a try. Sorry I couldn't be of more help!

Already on latest version thanks.