iOS 9.0.2 blocks a vulnerability that offered access to contacts and photos from iPhone, iPad or iPod Touch even when the terminals had set a security code, Crab and a combination of applications being used to gain access to this data.
In iOS 9.0.1 the company Apple Lossless Audio CODEC (ALAC), did not solve this problem, but it seems that in iOS 9.0.2 he did, but he did not mention the change in the changelog published for users, but in a separate list in which he mentions all the vulnerabilities solved by the engineers.
Without crediting anyone for discovering this vulnerability, the Apple company just describes what it does and says that starting with iOS 9.0.2 none of his iPhones, iPads or iPod Touches are vulnerable to being exploited by hackers.
If you were afraid that a malicious person could exploit this system to harm you, then installed iOS 9.0.2, but if this is not a problem for you, then you can ignore the update, although it brings a lot of improvements and troubleshooting.
Lock Screen
Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later
Impact: A person with physical access to an iOS device may be able to access photos and contacts from the lock screen
Description: A lock screen issue allowed access to photos and contacts on a locked device. This issue was addressed by restricting options offered on a locked device.
