I have been using version 4.5.4 only on my old iPhone 6s plus for about 3 years. I am seeing the need to migrate date to my other devices and get rid of the original phone. How can I ensure the security of my old passwords/data? And how do I get these same data onto mSecure v.5? 

I hope someone can answer quickly as I would like to upgrade, but only if I can they can assure me of not losing my data.

Thanks!