<p>This depends on the char set you used for your password. The numbers below are from Wikipedia (no guarantee) and describe how long it takes to crack a password with a standard PC + GPU. They are for the case that the password exactly 8 characters.</p>
<p>[0-9]: 100 ms</p>
<p>[a-z]: 4 min</p>
<p>[A–Z; a–z; 0–9]: 3 days</p>
<p>[A–Z; a–z; 0–9] + Special Characters: 84 days</p>
<p>So in the case of 8 characters there is a certain chance that you can crack it. However, if you only used a 9 characters pw, the last two cases already way more difficult.</p>
<p>[A–Z; a–z; 0–9]: 159 days</p>
<p>[A–Z; a–z; 0–9] + Special Characters: 22 years.</p>
<p>So for passwords with special characters 8 is the maximum length you have a chance. If the password only contains [0-9] or [a-z] there is a chance until 11-12 chars.</p>

CC BY-SA 4.0
2021-06-12T22:00:52.673Z
This seems to assume, with no justification, that each attempt takes 1 ns.  That number could vary greatly depending on the hash or encryption algorithm used for the password, which we don't really know.  So I'm not sure these numbers are at all meaningful.
Nate Eldredge
CC BY-SA 4.0
2021-06-12T12:33:29.233Z
2021-06-12T12:39:22.143Z
2021-06-12T12:39:22.143Z
Martin Niemer
<p>first of all, it depends on hashing algorithm used in wallet encryption,
that is to say, in some hashing algorithms the cracking software can check 1 or 2 password per second and in some other hashing algorithm it checks about 20000 passwords per second. therefore, this is crucial index to have in mind. overall, 8 characters can be cracked, though it might take  while to do it</p>

CC BY-SA 4.0
2021-11-06T08:39:41.890Z
2021-11-06T08:39:41.890Z
Wallet Recovery
<p>I found an old BTC wallet. The password should have about 8 characters but forgot it unfortunately. Is there a realistic chance to recover it or is this hopeless?</p>

<wallet>
What is the chance to recover an 8 character wallet password?
lostpassword
# What is the chance to recover an 8 character wallet password?

(Asked by: username_0 on 2021-06-11)

I found an old BTC username_3. The password should have about 8 characters but forgot it unfortunately. Is there a realistic chance to recover it or is this hopeless?

**Tags:** wallet


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## 2 answers

### Answer by username_1 on 2021-06-12. Score: 2

This depends on the char set you used for your password. The numbers below are from Wikipedia (no guarantee) and describe how long it takes to crack a password with a standard PC + GPU. They are for the case that the password exactly 8 characters.

[0-9]: 100 ms

[a-z]: 4 min

[A–Z; a–z; 0–9]: 3 days

[A–Z; a–z; 0–9] + Special Characters: 84 days

So in the case of 8 characters there is a certain chance that you can crack it. However, if you only used a 9 characters pw, the last two cases already way more difficult.

[A–Z; a–z; 0–9]: 159 days

[A–Z; a–z; 0–9] + Special Characters: 22 years.

So for passwords with special characters 8 is the maximum length you have a chance. If the password only contains [0-9] or [a-z] there is a chance until 11-12 chars.

> **Comments:**
> **username_2**: This seems to assume, with no justification, that each attempt takes 1 ns.  That number could vary greatly depending on the hash or encryption algorithm used for the password, which we don't really know.  So I'm not sure these numbers are at all meaningful.  

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### Answer by username_3 on 2021-11-06. Score: -1

first of all, it depends on hashing algorithm used in username_3 encryption,
that is to say, in some hashing algorithms the cracking software can check 1 or 2 password per second and in some other hashing algorithm it checks about 20000 passwords per second. therefore, this is crucial index to have in mind. overall, 8 characters can be cracked, though it might take while to do it


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