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Dropbox passwords optional for four hours

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Re: Dropbox passwords optional for four hours

#11
post #9

Anyone who had any confidential data in Dropbox (medical research data, credit card transaction data) must now file a data breach report.

And anyone who stored that sort of data in dropbox more or less had it coming. HIPAA & finance laws are very clear about the security they require -- dropbox has always been hand-wavey in their explanation of their security.

Re: Dropbox passwords optional for four hours

#14
post #4

Earlier quoted context omitted.

The thing is that you can't do email then. You can say that google might leak your emails, but the same is true if you use your private email server.

That's not exactly true. You just need to be super-paranoid and make sure that everything of importance is sent (on both ends) encrypted. That's still wholly untenable for the real world, but not all paranoid people live in the real world per se.

It's unfortunate that simple public key encryption, which has been easily available for many years, is still seen as untenable and "super-paranoid." Any email client, or better yet Gmail, could easily implement it and make it virtually transparent to the user (when both ends of the email are using such a client, obviously).

Re: Dropbox passwords optional for four hours

#15
Dropbox's security is twitter's downtime. While much more is at stake than not being able to tweet, I can't imagine that this isn't their number one growth challenge -- something that, if they conquer it, will give them a much higher market valuation.

If this happens, let's look forward to a trove of blogposts about "how to make dropbox secure" from armchair CTOs, just like we saw with Twitter and the string of posts around "How I'd scale twitter" Sharding! Webscale!

Re: Dropbox passwords optional for four hours

#16
post #15

Dropbox's security is twitter's downtime. While much more is at stake than not being able to tweet, I can't imagine that this isn't their number one growth challenge -- something that, if they conquer it, will give them a much higher market valuation. If this happens, let's look forward to a trove of blogposts about "how to make dropbox secure" from armchair CTOs, just like we saw with Twitter and the string of posts…

I don't think this is a reasonable comparison. Twitter was at least 80% as useful when its uptime was erratic as it is now, when it's uptime is reasonably good. But Dropbox security flaws potentially cough up your data to criminals; when Dropbox security fails, its utility is negative, not slightly diminished.

Re: Dropbox passwords optional for four hours

#17
post #9

Anyone who had any confidential data in Dropbox (medical research data, credit card transaction data) must now file a data breach report.

Do people really store confidential business data like that in dropbox?

Very yes (we don't allow Dropbox† on our machines, but we know of companies that rely on it).

Grandalf's point is extremely well taken. It's actually true. Not only that, but regulated companies (in health care and finance) that have a reasonable belief that any of their systems might have had Dropbox on them technically need to audit now.

I point this out not to bag on Dropbox, but as an illustration of how sane some unreasonable-sounding IT policies (like, "you don't get to install random software on your desktop") turn out to be.

(Or Tarsnap or SpiderOak, for what it's worth.)

Re: Dropbox passwords optional for four hours

#18
post #11
post #9

Anyone who had any confidential data in Dropbox (medical research data, credit card transaction data) must now file a data breach report.

And anyone who stored that sort of data in dropbox more or less had it coming. HIPAA & finance laws are very clear about the security they require -- dropbox has always been hand-wavey in their explanation of their security.

What's your point? The IT guys can't catch a break, can they? If they say "no you can't install stuff on your machine", message board geeks are up in arms. But when normal people, for whom these computer systems are designed in the first place, make (layperson-) reasonable decisions about what folders to put files in, there's the message board geek again, harassing them for not understanding how transparent cloud file sync works under the covers and interacts with regulated data.

Re: Dropbox passwords optional for four hours

#19

Hoping this convinced someone at dropbox to write a three-line release-blocking test to ensure that you can't login with a wrong password... Crosses fingers

If you're disquieted by the idea that a single broken boolean expression could allow arbitrary users to access a web site, one way to mitigate the concern is indeed to write fiddly little tests to catch every point at which a broken boolean expression could short-circuit authentication.

Another thing to do would be to change the design of the authentication process so that it is more inherently fail-closed. For instance, you could encrypt/decrypt the database ID of the user with a key derived securely and deterministically from the user's password, perhaps (just to keep the code simple) after verifying the password against a secure password hash.

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