Tip: How to choose a secure password!

General rules for secure passwords!

Choose secure passwords.

How can you choose a secure password that you can also remember? While this seems very complicated, there are a few very simple tips on how you can still succeed. Important: The examples are only intended to show which concept I am implementing and describing here. there will not only be a concept that is suitable for choosing a secure password. The combination of several methods will result in a secure and memorable password!

  • User a mix of alphabet and numbers
  • Always use a mixture of lowercase and capital letters
  • Use symbols that your system allows to enter (! ”§ $% & / etc ..)
  • Spaces are not possible for passwords!
  • Use phrases that you can remember and change them with spelling mistakes.
    Example: I like sun! = “ICh2MaK3sohne!”
  • User special characters to express something
    Example: “iCh2MaG”> Sun! or “Ich2 (MAG)> sohne!”
  • Use abbreviations or special characters to deface your phrase
    Example: ich2 (MAG)> ***
choose secure passwords
Choose secure passwords!

Another technique would be to think of longer phrases and shorten them and store them with special characters:

For example:

"The best show I've ever seen."

"DBSDIJGH”Only the initial letters

"DbSdIjGh”First letters alternate upper and lower case

"Db2Sd4Ij6Gh8”Additionally stored with numbers“ 2,4,6,8 ”

"! Db2 ″ Sd4§Ij6 $ Gh8%”And put special characters in every third place:“! ”§ $%”

Obviously, you can repeat this scheme for any remaining application or website and remember one sentence per application without changing your own system!

Now that you have selected the first part of your password. (It should consist of at least 8 characters!) You can also add an individual part for the application or website.

  • ebay: eB:Db2 ″ Sd4§Ij6 $ Gh8%
  • Amazon: Db2 ″ Sd4§Ij6 $ Gh8%: M a
  • Facebook: face:Db2 ″ Sd4§Ij6 $ Gh8%Book

You can use this to generate as many passwords as you like and you just have to remember how to change them. The best way is according to a scheme that only you are known and that at first glance never reveals how you come up with it.

What you should never do:

  • Do not use your name, in any form, neither first name, last name, spit name or otherwise!
  • Never use dates such as birthdays, social security numbers, bank account numbers or any other way. every date is also known to somebody else!
  • Never use part of your username in the password!
  • It's best not to use names at all, not even Susi, Peter or Seppi!
  • Make passwords with at least 8 characters! Never shorter!
  • Do not use location information in the passwords: Salzburg, Munich, Hamburg etc.
  • No street names
  • No otherwise meaningful words!
  • Do not use forms of encryption such as:
    A = 1; B = 2; C = 3; D = 4 ... because every simple encryption is understandable for others.

Why? How does this change security?

If you choose a word or a number that can be understood, the mathematical probability of being able to understand it is reduced by an enormous factor!


8 characters used in a password
calculation Possible combinations
Vocabulary words:
(Let's say there are ~ 600,000 words)
- 600,000
Only pay ^ 10 8 100,000,000
Letters only in lowercase ^ 26 8 208,827,064,576
Letters upper / lower case combination ^ 52 8 53,459,728,531,456
upper / lower case + numbers ^ 62 8 218,340,105,584,896
Complete combination of all printable characters (10+26+26+19)^8 645,753,531,245,761

The longer a password is, the more secure it becomes:

The exponential security increases extremely with each character that is added:

  • 8 characters> 645,753,531,245,761 (645 trillion) combinations
  • 9 characters> 45,848,500,718,449,031 (45 Quadrillion) combinations
  • 10 characters> 3,255,243,551,009,881,201 (3 Quintillion) combinations

I refer to the following predictions of security on the following characters, which can be found on a normal keyboard:

Sign Number of characters possible
0123456789 10
a B C D E F G H I J K L M N O p Q R S t U v w x y z 26
`~! @ # $% ^ & -_ = + [{]}. 19

Created on: 02/06/2016

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