"Bitcoin can provide very high levels of security if used correctly. Always remember that it is your responsibility to adopt good practices in order to protect your money.The things you should do to keep your wallet secure are:
a) Backup your wallet
b) Encrypt your wallet
c)Offline wallet for savings
d)Keep your software up to date
e)Multi-signature to protect against theft
f)Think about your testament
To learn more about it you can visit this site:
https://bitcoin.org/en/secure-your-wallet"