What does it mean?

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What does it mean?

That IE can't access the CA's list that will tell it whether or not the certificate's key has been revoked (e.g. because someone stole the private key or something).
It's like if I give you a passport that seems genuine and you phone UK IPS up to check but can't get through to them.
thanks GoddersUK... I looked at the process that the pop-up belongs to:
jusched.exe / Java(TM) Update Scheduler / Sun Microsystems, Inc.
So..... the scheduler is trying to access a site... but there's something wrong with the site's certificate?
Yeah, Java's phoning home to see if there's any updates available and getting that certificate. As I understand it (although there are people far more knowledgeable than me about this on c9), more than likely there's nothing actually wrong with the certificate itself, your computer just can't check with Comodo that they've not revoked the certificate.
8 minutes ago, GoddersUK wrote
Yeah, Java's phoning home to see if there's any updates available and getting that certificate. As I understand it (although there are people far more knowledgeable than me about this on c9), more than likely there's nothing actually wrong with the certificate itself, your computer just can't check with Comodo that they've not revoked the certificate.
or another possible case might be that something put a bad update location on your system and the software is going to a bad site with a fake SSL cert that looks like it's from them but not and some bad folks are betting that a lot of folks will assume the cert is real, trust it and get more malware installed.
I do not know if that is the case but ..... I would check to see if you can verify that the CA is not having a problem and does oracle / java use them for the certs and do they have any info about that problem happening to others.
or just uninstall java and forget that stuff...
Yeah, I don't even know why I had Java anymore... Still need it at work though
And I'd assume that the UI is Window's... so the cert is legitimately issued to oracle... Probably safe?
@Minh: Probably safe. The UI in the screenshot definitely belongs to Windows. Verifying certificates is something that normally happens silently and transparently to the calling application, except when there's an issue like this.
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