As with anything valuable, hackers, thieves, and scammers will all be after your bitcoins, so securing your bitcoins is necessary.

If you’re serious about investing in bitcoin and see yourself buying a significant amount, we recommend using Bitcoin wallets that were built with security in mind.

Ledger Nano S – Ledger is a Bitcoin security company that offers a wide range of secure Bitcoin storage devices. We currently see the Ledger Nano S as Ledger’s most secure wallet. Read more about the Ledger Nano or buy one.
TREZOR – TREZOR is a hardware wallet that was built to secure bitcoins. It generates your Bitcoin private keys offline. Read more about TREZOR or buy one.
Bitcoins should only be kept in wallets that you control.

If you leave $5,000 worth of gold coins with a friend, your friend could easily run off with your coins and you might not see them again.

Because Bitcoin is on the internet, they are even easier to steal and much harder to return and trace. Bitcoin itself is secure, but bitcoins are only as secure as the wallet storing them.

Investing in bitcoin is no joke, and securing your investment should be your top priority.

Offline Mode
The offline mode of securing bitcoins is called cold storage. Cold storage wallets are not connected to the Internet and are thus less susceptible to hacking. Since accessing a cold storage wallet can be inconvenient, it’s best to split the bitcoins you own. Keep a small amount of bitcoins in an online digital wallet for daily trading needs and keep the rest in cold storage. Cold storage takes the private keys in an offline mode, thus decreasing the chances of theft. The practice of using cold storage is not only popular with individuals but even with cryptocurrency exchanges that deal with huge sums and are often under constant threat by hackers. The popular cold storage methods are paper wallet, sound wallets, storage devices (like a USB drive), and hardware wallets.

Ledger Nano S is the best one for me till now.
I feel safe with it. And I only connect it once I need confirm for trasaction.
No one can see your private key, even you lost this device it's still not big problem.
It value too small to compare with BTC

There are incidents of hacking, theft, and fraud associated with bitcoin. Best to secure your bitcoins than be sorry. You can use cold storage, backup - in case of computer failure. Consistent update of software is also a big help. The latest version of wallet software will be a better security system for your bitcoins.

If you have big volume of bitcoin first of all you want select a secure wallet.There are many wallets in the internet.I Recommended to use if you got big volume of bitcoin use a Hardware Wallets.But it is little bit expensive.But more secure.If you doing some little transaction you can use Web Wallet or Desktop/Mobile Wallets.They are also secure.Main thing is never share your Privet Key with anyone.If You Share you will be get hack and you will lost all of your Bitcoin.

I agreed that hardware wallets are good at securing Bitcoin and Altcoin. There are plenty of phishing website around, the hardware wallet doesn’t expose your private key. Buying one at less than $100, it is definitely a good buy.

How to secure bitcoin is we must have a private key which is basically a private key only ourselves who know our personal key password and maybe we should enable 2FA feature as it serves to provide authentication and notification in your bitcoin wallet.

You should be wary of any service designed to store your money online. Many exchanges and online wallets suffered from security breaches in the past and such services generally still do not provide enough insurance and security to be used to store money like a bank. Accordingly, you might want to use other types of Bitcoin wallets. Otherwise, you should choose such services very carefully. Additionally, using two-factor authentication is recommended

I think the only way to protect our Bitcoins is saving it at the local wallet and cut the internet connection and it will be totally safe.

If keeping for the long term as in not going to trade regularly then it is best to keep them in a local wallet and keep the private keys safely stored away, a hardware wallet such as Ledger or Trezor are fantastic for this.