What are Apple trust certificates and what do they mean?
What are Apple trust certificates and what do they mean?
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In simple terms, The Trust Store contains the digital signatures of issuers of the SSL certificates that are used to encrypt access to websites and email servers. There are billions of SSL certificates in use around the world. They are issued by a relatively small number of agencies and companies (Called Certificate Authorities, or CAs), who, as part of the process of issuing the certificate, verifies that the site is legitimate. When you visit a website the certificate from that site is sent to your browser. Your browser then verifies that the certificate was issued by one of the agencies whose signature is in the Trust Store. If the signature is not in the trust store you see a warning that the site may not be what it seems. The Trust Store is updated as part of an iOS update. It will change whenever the list of certificate authorities changes, which is very rare. The Trust Store version is actually the date and time the trust store contents were last updated. So, for example, version 2021072200 was last updated on July 22, 2021 at midnight.
The trust store version has absolutely nothing to do with security vulnerabilities. If you keep your Mac product updated to the latest version of MacOS or iOS it will be protected against all known vulnerabilities, despite whatever nonsense has been posted in the forum.
