1. Offline Mode:
The offline mode of securing bitcoins is called cold storage.
2. Backup:
Backup your entire bitcoin wallet early and often. In case of a computer failure, a history of regular backups may be the only way to recover the currency in the digital wallet.
3. Software:
Keep your software up to date. A wallet running on non-updated bitcoin software can be a soft target for hackers.
4. Encryption:
Encryption adds a layer of security to a particular folder, file, or message as it can only be unlocked by someone who knows the right key to it.
5. Multi-Signature:
The concept of a multi-signature has gained some popularity; it involves an approval from a number of people for a transaction to take place.