Well, there are so many ways for you to protect your money or account from hackers. I will list down all of the ways I know to prevent hackers from your account.
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4. Keep your account on your self - only means do not share it with anyone.
Those 4 are my ways to secure my account; if you know more ideas on how to secure your account from hackers, feel free to comment is so we will all be benefited from it.
I definitely agree with all the ones you have listed but this last point always get me a bit worries sometimes you know. We all know the huge number of bitcoins that have been lost in circulation together with other coins. i think it will be best to trust your wife or a sibling close to you so that in case anything bad happens to you the funds can be of help to your family members.
Or there can be a trusted firm like we have lawyers who testify to our wills in order to share our properties equally among our heirs.