LastPass breach: The significance of these password iterations
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Re: LastPass breach: The significance of these password iterations
#2[dead]
Re: LastPass breach: The significance of these password iterations
#3For anyone else having trouble finding the “show advanced settings” button: It’s at the bottom of the account settings pop up where ok/cancel buttons usually are.
Re: LastPass breach: The significance of these password iterations
#4As I feared, I changed the iterations myself at some point, and they never "migrated" it to the new value. So it's above the old default, but well below the recommended number of iterations.
I don't suppose it being a non-obvious value makes it any more secure? Is an attacker brute forcing the thing likely to try obvious default values first and then give up if they don't work? Or will they simply +1 the iteration count until they hit paydirt?
Re: LastPass breach: The significance of these password iterations
#5As I feared, I changed the iterations myself at some point, and they never "migrated" it to the new value. So it's above the old default, but well below the recommended number of iterations. I don't suppose it being a non-obvious value makes it any more secure? Is an attacker brute forcing the thing likely to try obvious default values first and then give up if they don't work? Or will they simply +1 the iteration co…
[1] makes it seem like the number of rounds is included unencrypted at least on the client side binary databases. As it's sent over the wire when downloading the vault, lastpass would _have_ to have that in clear text somewhere.
Re: LastPass breach: The significance of these password iterations
#6Can attackers can easily tell the 1 and 500 iteration databases and focus their resources in breaching those ones?
Re: LastPass breach: The significance of these password iterations
#7Interesting. This is starting to look like gross negligence that might bite LogMeIn really hard.
Re: LastPass breach: The significance of these password iterations
#8>GTX 1080 Ti graphics card (cost factor: less than $1000) can be used to test 346,000 guesses per second.
>GeForce RTX 4090 graphics card could test more than 88,000 guesses per second!
Guessing we're missing a zero there?
Re: LastPass breach: The significance of these password iterations
#9The article is missing key data. The password iterations that are set low are client side. The server side is different.
The writer of the article needs to retract.
https://support.lastpass.com/help/about-password-iterations-...
Re: LastPass breach: The significance of these password iterations
#10As I feared, I changed the iterations myself at some point, and they never "migrated" it to the new value. So it's above the old default, but well below the recommended number of iterations. I don't suppose it being a non-obvious value makes it any more secure? Is an attacker brute forcing the thing likely to try obvious default values first and then give up if they don't work? Or will they simply +1 the iteration co…
Disclaimer: I’m the author of this article.
No, the iteration count is no secret. It’s even exposed via a public API, anyone can query it if they know the email address.