Like in real life, your wallet must be secured. Bitcoin makes it possible to transfer value anywhere in a very easy way and it allows you to be in control of your money. Such great features also come with great security concerns. At the same time, 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.

---

Source: https://bitcoin.org/en/secure-your-wallet

• You yourself are responsible for the protection of bitcoins possessed by you. Do not depend on others.
• Make use of multi-signature wallet for better protection.
• Your private key should be saved at two to three different locations like paper wallet, hard drive or USB. So, if it lost from one place, you have a backup and you do not lose your bitcoins.
• For your account on cryptocurrency exchange platforms and wallets, do not use the same email address and passwords as your other mailing and social media accounts. Use distinct addresses and strong passwords.
• Never post on social media about your wallet information. Keep it a top secret.
• Always use a two factor authentication.
• Install a good antivirus software on devices through which you trade bitcoins.
• Store your confidential data (private key) in encrypted format if possible.

Below are some of the best bitcoin security practices:

• You yourself are responsible for the protection of bitcoins possessed by you. Do not depend on others.
• Make use of multi-signature wallet for better protection.
• Your private key should be saved at two to three different locations like paper wallet, hard drive or USB. So, if it lost from one place, you have a backup and you do not lose your bitcoins.
• For your account on cryptocurrency exchange platforms and wallets, do not use the same email address and passwords as your other mailing and social media accounts. Use distinct addresses and strong passwords.
• Never post on social media about your wallet information. Keep it a top secret.
• Always use a two factor authentication.
• Install a good antivirus software on devices through which you trade bitcoins.
• Store your confidential data (private key) in encrypted format if possible.

But access to the wallet can be obtained from the network, it is not disconnected?

When using an online service such as a bitcoin exchange: Enable 2-Factor-Authentication (like Google authentication) on your account!
Always have direct control of your bitcoins (private keys). If you don’t have the keys, you don’t control the bitcoins.
Make regular backups of your bitcoin wallet!
Also, the best security practices would be using a hybrid exchange during transactions and  BetCoin offers a hybrid exchange platform.