Total Windows Security Tutorial - Beginner | The basic: choose a secure password - random password generator

A password ?

You use passwords any time you need to login into some account: forum, email, bank... It is the very first protection against unauthorized users.

Your password is therefore extremely important and you must keep it secret; so, if you write it somewhere, keep it in a safe place.
However, passwords are always subject to one type of attack: brute force. This means that the attacker try to find your password by trying each possible password: so the complexer the password, the better.
With a 8 chars password, the number of possible passwords are:

1. 
   Only numbers: 100,000,000

2. 
   Only tiny letters (a to z): 208,827,064,576

3. 
   Capital and tiny letters: 53,459,728,531,456

4. 
   Capital and tiny letters and numbers: 218,340,105,584,896

5. 
   All symbols on a normal keyboard: > 10,000,000,000,000,000

Supposing that an attacker can try 100,000 passwords per second, it would try all passwords in more than 13,000,000 years... so it will never find it. Obs: I will talk later about more complex passwords and keyfiles. These use symbols that doesn't exist on your keyboard and a lot longer. In these cases, the needed time is thousands of times the age of the universe !

How to remember passwords

The best is of course not to physically store it (write). I suggest then to make a sentence you won't forget (as a proverb, a song) and take, for instance, the first and the last letters of each word, once tiny, once capital.
Example: It is raining cat and dogs
becomes
ItIsRgCtAdDs
You can then change "s" to "$", or whatever letters you want:
ItI$RgCtAdD$

You can use the password generator to see examples of great passwords.

Random Password Generator

Complex password ?

Length: 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Password: