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Tag Archives: invalid security certificate

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Fixing Security Certificate Problems in OS X

Daniel Knight,  Low End Mac, Mac Daniel - 2013.10.26 - Leave a comment -

Since installing OS X 10.9 Mavericks, I’ve been plagued by problems with security certificates. I couldn’t visit Twitter or LastPass using Safari or Chrome. And I couldn’t log in to Messages or FaceTime. But after a fair bit of research, I found a solution.

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