Security has been a major concern for users of various devices, including iPhone, iPad and iPod Touch. Ironically, a Jailbroken iOS device has more flexibility than its counterpart.
Recently, TaiG released the Jailbreak edition of iOS 8.4 and while Apple is claiming the new version of iOS, 8.4.1, is unjailbreakable, Pangu has demonstrated successful jailbreak of the same, which purports that iOS 8.4.1 jailbreak will arrive soon. Whatever version of Jailbreak your device has, you can use the following tweaks for a secure experience:
Protect My Privacy
The Cydia tweak is meant to protect all your archived personal information on iPhone by restricting all your system downloaded apps while trying to access sensitive information like your location or contact and leaves the decision up to you by a prompt. It also allows you to send fake information in case it becomes necessary to send the data.
Locus
This Cydia tweak allows you to select specific apps that can track your actual location. Locus will block the rest of the apps to retrieve the location. Locus will turn off the GPS and prompt the apps behaviour to you.
SafeTexting
iMessage is a great texting tool available in the iPhone, but the read notification becomes annoying sometimes when you don't feel like responding to the senders' messages. The SafeTexting tweak can be a saviour in that case. This iOS 8 Cydia tweak only sends read recipients when you reply to them. For making them understand that you just read the message, the SafeTexting will send the read recipient only when you start typing the reply.
BioLockdown
This Cydia tweak will help you to lock certain number of apps with fingerprint lock for making the data more secure even when the iPhone is unlocked. This app will also help you to lock the switch off option with fingerprint lock so that nobody will be able to turn off the device without your permission.
[Source: GottaBeMobile]