Originally Posted by
reft
Can you elaborate?
At the root of this, we're dealing with a user who is already taking personal responsibility for going over the wall of of the walled garden.
Advice in this thread isn't intended for joe-average-iphone user. That advice would be run 10.3.2 or higher for the very latest security patches, don't jail break your phone, only use Apple approved apps and wear clean underwear in case of a car crash.
Count the number of iOS security updates since 9.x
https://support.apple.com/en-us/HT201222
Usually people who like to jailbreak and run non-approved apps tend to focus more on the functionality they're getting and forget about the huge number of zero-day and other exploits that Apple patches almost constantly.