Only as long as all certificate authorities ensure that all networks they host servers on secure. If you can BGP spoof a domain-validating CA, you can get a valid certificate for any domain of your choice (unless maybe if that domain is DNSSEC-enabled, the CA does strict validation, and the domain has a CAA record for another CA that is not BGP-spoofable).
Major news outlets, government websites from various countries, the American army, and many more all lack CAA records, for instance. Any CA can generate a valid certificate for those domains and it's up to the people watching the public certificate transparency logs to catch any malicious certificates.
Major news outlets, government websites from various countries, the American army, and many more all lack CAA records, for instance. Any CA can generate a valid certificate for those domains and it's up to the people watching the public certificate transparency logs to catch any malicious certificates.