<p>I guess that it must have, because it updates the server after any modifying operation is made, without asking for a password.</p>

<p>That is <a href="https://bitcointalk.org/index.php?topic=40264.msg5515607#msg5515607" rel="nofollow">DannyHamilton claims as well</a>. <a href="https://bitcointalk.org/index.php?topic=40264.msg5605885#msg5605885" rel="nofollow">See also</a>.</p>

CC BY-SA 3.0
2014-03-09T15:52:21.317Z
2014-03-09T15:52:21.317Z
ripper234
<p>When you log into blockchain.info - you enter the password on the client side.</p>

<p>Does the password remain stored in a local javascript variable on the client side after the login process is over?</p>

<p>If yes, does that count as real a security risk? What kind of attack vectors does that open you to?</p>

<p>If not, how else does the wallet update the server side state?</p>

CC BY-SA 3.0
2014-03-04T22:40:22.130Z
http://bitcoin.stackexchange.com/questions/5249/how-secure-is-blockchain-info
RentFree
<blockchain.info><javascript>
Does blockchain.info retain the wallet password in client-side memory?
ripper234
# Does blockchain.info retain the wallet password in client-side memory?

(Asked by: username_0 on 2014-03-04)

When you log into blockchain.info - you enter the password on the client side.

Does the password remain stored in a local javascript variable on the client side after the login process is over?

If yes, does that count as real a security risk? What kind of attack vectors does that open you to?

If not, how else does the wallet update the server side state?

**Tags:** blockchain.info, javascript

> **Comments:**
> **username_1**: http://bitcoin.stackexchange.com/questions/5249/how-secure-is-blockchain-info  

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## 1 answers

### Answer by username_0 on 2014-03-09. Score: 0 | Accepted answer

I guess that it must have, because it updates the server after any modifying operation is made, without asking for a password.

That is [DannyHamilton claims as well](https://bitcointalk.org/index.php?topic=40264.msg5515607#msg5515607). [See also](https://bitcointalk.org/index.php?topic=40264.msg5605885#msg5605885).


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