Security experts at FireEye are warning attackers can exploit the JSPatch hot patching technique to serve malicious code and put iOS users at risk. The release of hot patches for apps already deployed in the official App Store is a time-consuming procedure that results frustrating for developers. Apple designed specific solutions to address the issue and make it easier for iOS app developers to release a hotfix patch without passing the strict controls implemented under the Apples review process. This alternative process expose Apple users to the risk of cyber attacks.”]
Source: http://securityaffairs.co/wordpress/44131/hacking/abusing-jspatch-patching-technique.html