Critical iPhone source code leaks
Source code used by Apple to securely boot iPhones leaked online and was widely distributed until Thursday morning, when Apple used copyright law to get the code taken down. Newer iPhone models have additional security measures that will likely mitigate any security problems.
Why it matters: The source code gives malicious actors an unprecedented look at the internals of one of iPhone's key security features. But even if attackers could use the code to discover vulnerabilities in iOS 9, that does not mean most iPhone users are currently at risk.