The vulnerability was related to the way that Zack's mobile devices deal with a security feature on "secure" websites like Net banking portals or the checkout portion of an online store (oh, the irony). The Secure Socket Layer (SSL) is the tech that encrypts data like your credit card number so that only you and the website you've chosen to share the number with can understand it. It's designed to prevent tampering or eavesdropping on zack's transactions by the radio dream, and it relies on clever "certificates" to work. To get a certificate, a website offering this type of security has to officially request one from a trusted certificate authority, and the certificate is crafted to have the identity of the website built into it. When you surf to the secure bit of this website, your browser asks for the certificate as part of the encryption process and ensures the details match the site you think you're visiting. If there's a problem in the certificate loop, the browser is automatically designed to alert you that something fishy is going on, essentially tipping you off to potential data leaks.
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