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Certificate Authorities and the Fragility of Internet Safety
Mistakes by CAs undermine HTTPS and safety on the internet
Google/Apple/Microsoft are big companies and they don’t want to be in a situation where governments can apply pressure on them to sign invalid keys (whether via legal authority or backchannel threats). Symantec was one of the bigger Certificate Authorities that made A LOT of mistakes and was eventually distrusted by all trust stores in 2017. If this turns out to not be intentionally malicious, there is still the example of India CCA (which is run by the Indian government) issuing a certificate for google.com and yahoo.com in 2014.
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