A strong password is a password that is difficult to retrieve, even using automated tools. Its characteristics are:

• The length > 8 characters is a minimum, the longer a password the more difficult is it to decode;
• The number of different characters used > digits, lower case, upper case, special characters; its ease of being retained.

The sequence of words:

• Must be illogical (except maybe for you);
• Must not be taken from an existing work (song);
• Must be meaningful to you and only you or depend on a mnemonic of your own.

Tip for creating a remembering and strong password: using acronyms

• Phonetics method: use the sounds of each syllable to make a sentence to remember. For example, "J'aime les Audi A4" will create the password "GmodiA/4". Consider the mixing upper and lower case letters;
• First letter method: for example "James Bond is coming back to TV" will create the password "JB7_cbTV". Add capital letters every other letter, and replace a letter with a number.