An anonymous reader writes: GlobalSign, one of the root CAs globally, has 'inadvertently revoked its intermediary certificates while updating a special cross-certificate. This smashed the chain of trust and ultimately nullified sites' SSL/TLS certificates. It could take days to fix, leaving folks unable to easily read their favorite webpages.' The issue may take up to four days to resolve itself.
Two hours ago, GlobalSign said it was able to identify the problem, but due to caching issues, many of its customers were still experiencing issues.