How long does it take to crack a password?

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According to [1], you can beat the hackers by choosing a password long enough (at least 12 characters). A strong password is also difficult to guess because it consists of random characters only rather than meaningful words. A strong password basically looks like this: S + GfV $% # Rae8.

The time it takes for a hacker to crack your passwords depends on mainly the following factors:

  1. Number of characters (the longer, the better)
  2. The type of characters used in the password (the more variety, the better)

Guidelines for choosing good passwords to make passwords harder to discover:

  • Use a minimum password length of 20 or more.
  • Include lowercase and uppercase alphabetic characters, numbers and symbols.
  • Generate passwords randomly.
  • Avoid using the same password twice.
  • Avoid character repetition, keyboard patterns, dictionary words, letter or number sequences.
  • Avoid using information that is or might become publicly associated with you.
  • Avoid using information that your colleagues and/or acquaintances might know to be associated with you.
  • Do not use passwords which consist wholly of any simple combination of the aforementioned weak components.
  • Use of a password manager is recommended by the National Cyber Security Center[2]

How long does it take to crack a password?

According to Hive Systems[3], the time it takes a hacker to crack your password:

Number of CharactersNumbers OnlyLowercase lettersUpper and Lowercase lettersNumbers, Upper and Lowercase lettersNumbers, Upper and Lowercase letters, Symbols
6InstantlyInstantlyInstantly1 sec5 secs
7InstantlyInstantly25 secs1 min6 mins
8Instantly5 secs22 mins1 hour8 yours
9Instantly2 mins19 hours3 days3 weeks
10Instantly58 mins1 month7 months5 years
112 secs1 day5 years41 years400 years
1225 secs3 weeks300 years2.000 years34.000 years
134 mins1 year16.000 years100.000 years2m years
1441 mins51 years800.000 years9m years200m years
156 hours1.000 years43m years600m years15bn years
162 days34.000 years2bn years37bn years1tn years
174 weeks800.000 years100bn years2tn years93tn years
189 months23m years6tn years100tn years7qd year

According to CyberNews[4], here are the top 10 most common passwords worldwide:

  1. 123456
  2. 123456789
  3. qwerty
  4. password
  5. 12345
  6. qwerty123
  7. 1q2w3e
  8. 12345678
  9. 111111
  10. 1234567890

All of the passwords above would be cracked instantly.

According to reliable resources mentioned above it takes:

~ 30 days, 0 hours, 0 mins, 0 secs

* The above data is an average value.

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