Windows 11 is refreshing Secure Boot keys in 2026. Here's why TPM-WMI Event ID 1801 appears, and how to verify the new certificate.

Users around the world have had trouble accessing some HTTPS websites due to an error at GlobalSign, one of the world’s largest certificate authorities. As part of ...

Security has become an increasing concern for businesses as technology and daily life intersect. A press release from 2011 in which Sony Entertainment announced it had been hacked, highlighted the ...

You visit a client or other website and, instead of the site itself, you encounter a security certificate error. If you are using Windows and Internet Explorer, the ...

When trying to connect to WiFi, if you receive a Wi-Fi certificate error message — Can’t connect because you need a certificate to sign in to WiFi, then this post ...

The errors variously range from "this app is damaged and can't be opened" to "this app was purchased on another computer." In some cases, users were able to rectify the problem by logging out of and ...

While browsing a website on Google Chrome, if you get an error saying This server could not prove that it is <domain.com>; its security certificate is not from <ABC ...

Users around the world have had trouble accessing some HTTPS websites due to an error at GlobalSign, one of the world’s largest certificate authorities. As part of ...