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Questa č la raccomandazione INTEL e mi sembra molto sensata:
In order to protect your security, Intel has certain rules for choosing passwords. Please read the following rules so that you will know how to choose a good password.
The following rules apply to all passwords:
The password must be at least 8 characters long.
The password must contain at least:
one alpha character [a-zA-Z];
one numeric character [0-9];
one special character from this set:
` ! @ $ % ^ & * ( ) - _ = + [ ] ; : ' " , < . > / ?
The password must not:
contain spaces;
begin with an exclamation [!] or a question mark [?];
contain your login ID.
The first 3 characters cannot be the same.
The sequence of the first 3 characters cannot be in your login ID.
The first 8 characters cannot be the same as in your previous password.
Passwords are treated as case sensitive.
Examples of invalid or poorly chosen passwords:
Your login ID.
Names of co-workers, pets, family, etc.
Phone numbers, license numbers, or birthdays.
Simple passwords like "asdf" (adjacent keys on a keyboard).
Words, which can be found in a dictionary.
Examples of strong passwords (the following are for example purposes only; do not use any of these examples as your actual password):
Use a name, modified slightly, like "b0b$mith" or "M@ryL0ng".
Use a phrase you can remember, like "hello world" modified to "hel10@World".
"tL*5i?wu" (contains letters, special characters, and numbers).
Even though it is not a rule, it is strongly recommended that you use a combination of both upper and lower case letters.
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