11 Ways to Create an Online Bitcoin Wallet – wikiHow

Securing an online wallet is much like securing your online bank account. The biggest difference is that Bitcoin wallets don’t have as many online password recovery options in the event you forget your password—so memorize it or write it down and keep it in a safe place! If you lose access to your wallet, you lose access to your Bitcoin and might not be able to get it back.

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Write down your security key and store it somewhere safe. When creating any type of Bitcoin wallet, you’ll be shown a security key that looks like several unrelated words in an ordered list. This key is meant to restore your wallet if you ever lose your password. Make sure to write this key down exactly as you see it. Do not take a screenshot or photo of the key and leave it on a phone, tablet, or computer—if someone finds your private key, they can use it to restore your wallet and access your funds. It is extremely important that you never lose this key!