I am trying to save my money into bitcoin on regular basis as if everything goes fine in future then my savings will grow in the best possible way.
If your plan is to save your money in terms of Bitcoin, then keep on using all your hard earned bitcoin. I think there are better methods to save those bitcoin with highly secure mobile applications.
Yes he have to search for and have to apply some secure means , in order to keep secure his coins from the hackers, otherwise everything will be the same but his coins will be in the hands of some other person.
Its not that easy to hack someone's coins from his wallet, I think that is impossible and keeping some money in bitcoin is always good thing to do.