Het volgende heb ik van een Apple forum: Let's try a different approach. When you visit a website sometimes a secure, encrypted connection is established called SSL (Secure Sockets Layer). The website uses the OpenSSL software to create a certificate to do this, not your computer. The OpenSSL software on the website server, not your computer, has a bug in it that allows hackers to steal small chunks of memory from the server. This memory may contain user information. Here's the important part to understand. It's the website server that is vulnerable, not your computer. You are in danger because the server has your information that this bug can expose. So it doesn't matter which computer or operating system YOU are using on your computer, only the webiste you visited. That's why this is such a nasty bug. Talk about whether OS X 10.9.2 or 10.8.5 or any other version of OS X is vulnerable is meaningless. Everybody who uses the Internet is vulnerable because the problem is not on your computer, it's on the ...