Generating a Secure Passphrase
Your passphrase should be 6-12 words long. Pick a long, hard to guess passphrase.
A MindPay passphrase is not a password. Pick a long, hard to guess passphrase. You should only ever have to type it twice; once when you create your Bitcoin address and once when you want to empty the balance.
You can safely copy the public address generated and store it anywhere you want without risk. The passphrase is only used to generate the private key. You should never save your passphrase on your computer; if you must write it down, use a pen and paper. We have a page with tips for remembering your passphrase.
If you are going to use a MindPay address for long term or “cold storage”, you should definitely take the time to generate and memorize a “truly random” passphrase. It is easier than you think and you can find out how to do that here (link).
If you are going to quickly use and discard the MindPay address, you can do your best to create a “random” passphrase on your own. 6 words are an absolute minimum and using 12 is highly recommended. Bitcoins are money and you should not skimp on the security!
Here are some ideas for creating “random words” in a strong passphrase:
- Remember that your passphrase is case and order sensetive!
- Modify common lines/phrases (each common phrase counts as 1-3 words)
- Mary had a little lamb that she ate with mint jelly
- Jimmy cracked corn and it was awesome
- Passwords you no longer use
- Past phone numbers
- Past email addresses
- Old license place numbers
- First 3 or last 4 digits of your social security number
- Your student ID number
- First 4 characters in the serial number on the back/bottom of your mouse, cell phone, laptop, etc.
- The 2nd set of 4 numbers on your credit card
- The make and model of your first car
- The name of your freshman year homeroom teacher
- PAO Method: Person, Action, Object
- Think of a famous person. Think of a random object (noun). Think of something the person does with the object (verb). For example: Einstein. Cats. Runs. Einstein runs from cats. (counts as 1-2 words)
Things you SHOULDN’T do when creating your passphrase:
- Do not keep a copy of your passphrase(s) on your computer. Write them on pen and paper and store them in a safe place.
- Do not use a “password strength checker” to check your passphrase. These tools are unable to assess the strength of passphrases (to them it just looks like a very long password). The website could also be recording everything entered.
- Do NOT use a passphrase that is a logical sentence, no matter the length. That means no lines, paragraphs, or even chapters from a book/newspaper/magazine.
- If it’s printed somewhere, assume it will be checked.
- Never use your passphrase for something else.
- Do not simply change one word in your passphrase to generate new addresses.