Certificates are required to confirm the security of the visited resource. In almost every case they are reliable, since first a thorough check by specialized services takes place, and then they are issued. But sometimes situations arise when an error appears in the Opera browser: an invalid certificate. Of course, you can simply ignore it and continue further work with the site. But still, it’s better to figure out why it is happening, and what is an invalid security certificate.
Expired
Like many other types of documents, a certificate is issued only for a certain period. As you approach the end date, the staff responsible for servicing the resource are required to update the document. It happens that there is simply no time for this action, or the certificate cannot be renewed for some other reason.
As a result, if the user tries to access the site he needs, a message will be displayed informing about the expiration of the certificate. If the resource causes absolute trust and guarantees reliability, then the erroneous certificate can be ignored and continue to work with the site. More often than not, in the event of expiration, the security of the resource should not be reduced.
Fake certificate
Care must be taken, since exactly the same certificate error can occur in cases where the document is not authentic. Typically, fakes are created for phishing services. When a user visits a similar site, attackers take control of the data that will be left in the corresponding fields.
Invalid Date
Another reason may be the date that on the computer for some reason went astray. This can lead not only to the appearance of an expired error, but to the inability to activate this document. The latter is a problem, mainly for those who own the resource. The same problem can be the reason for errors of SSL-connection in the browser.
Other bugs
It happens that a certificate was issued only for a specific resource, and it will not work in any way to install it on another site. And if the wrong document for the site is still installed, then when you try to enter it, a certificate error about the wrong name will pop up. In this case, you can ignore the error or leave the site. If you need to continue working with the site, you need to click on the “Skip” button and go to the landing page.
Sometimes an error appears indicating that the party that signed the certificate was not found. The document is usually signed by large companies that are responsible for confirming the high reliability of the resource. To see a list of such certification centers, you can launch the Opera browser and do the following:
- Press the main button and go to the program settings.
- Go to the advanced settings section and select the "Security" tab.
- Click on the "Manage Certificates" button and go to the tab with publishers.
There are such certificates that are signed by the leaders of the organization or its employees. If you have confidence in the signatories of the certificate, then you can visit the site without fear. In order for services that use such a signature to be considered secure, its owners must be added to the list of certification centers. There are situations when the wrong certificate appears after the virus has infected the equipment. To avoid this, it is better to install reliable anti-virus software on your computer and scan the system from time to time for threats.
Conclusion
Certificates are needed to confirm the reliability and security of a resource. This is very important for such sites on which the user enters personal information or performs some kind of money transaction. Such documents are a kind of guarantee that the operations will be confidential, and the owners of the resource are honest people. Therefore, if an erroneous certificate has arisen, then risking once again is not recommended. If the user does not know anything about this site, then it is better to simply leave it. If before with this service such errors did not occur in the browser, and there is trust in it, then you can continue to work.