Dozens of popular iOS apps vulnerable to intercept of TLS-protected data

While developing a tool for evaluating mobile application security, researchers at Sudo Security Group Inc. found out something unexpected. Seventy-six popular applications in Apple’s iOS App Store, they discovered, had implemented encrypted communications with their back-end services in such a way that user information could be intercepted by a man-in-the-middle attack. The applications could be fooled by a forged certificate sent back by a proxy, allowing their Transport Layer Security to be unencrypted and examined as it is passed over the Internet.