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Bank harrasses user because he tweeted screenshot of their SSL certificate

ebalaskas.gr

11–20 of 74 posts

Re: Bank harrasses user because he tweeted screenshot of their SSL certificate

#11
post #3

[deleted]

He simply played chicken with an opponent that has a way bigger political/legal car.

And how is that not to do with money? Banks don't have political and legal clout from factors like posh parentage or celebrity, they have it from being very rich.

Re: Bank harrasses user because he tweeted screenshot of their SSL certificate

#13

Site seems to be down.

Tad ironic seeing as one of the last sentences in the blog post is: "Hope this blog post stays up for some time." I hope the site is not down because his domain/hosting got "convinced" by the legal department of the bank.

Re: Bank harrasses user because he tweeted screenshot of their SSL certificate

#14

I really hope the bank gets a lot of bad publicity out of this. Marketing opportunity for other banks to jump on the bandwagon and share there public keys on social media.

I wonder if they received help offers too. Shedding light on security holes is useful, but fixing them is even better.

Re: Bank harrasses user because he tweeted screenshot of their SSL certificate

#15

It's dangerously close to a passive-agressive pitchfork mob, but I propose that many people start tweeting to greek banks regarding their SSL configurations. The National Greek Bank, for example, scores an F on the SSL Labs Test because they are using TLS 1.0 and are vulnerable to POODLE: https://www.ssllabs.com/ssltest/analyze.html?d=nbg.gr their twitter account is: https://twitter.com/ibanknbg EDIT: The most effect…

https://twitter.com/ansimionescu/status/576425676036780032

I work in security/privacy/premium snake oil trade. Bank security (and software in general) is _usually_ a joke. The main reason for not fucking with a bank is the same why you wouldn't fuck with casinos, or the mob.

Re: Bank harrasses user because he tweeted screenshot of their SSL certificate

#16
I support the author and what the bank did is just absolutely wrong and outrageous, but I just want to clarify that this is not a freedom of speech issue. Freedom of speech refers to government restrictions on limiting the right to voice your opinion. The government wasn't involved and he didn't legally have to remove the tweet (but I would have removed the tweet as well if it threatened my job). I totally support the author, but this is not a freedom of speech problem. Sometimes we limit what we say because there can be negative consequences that have nothing to do with the government.

I recommend creating an anonymous Twitter account to remove negative pressure that can affect employment.

Re: Bank harrasses user because he tweeted screenshot of their SSL certificate

#17

> Firefox suggests some security concerns in the firefox console on both sites. Especially about how weak is sha1 algorithm. Both sites have a 2048 public cert, the one use TLS1.2 but the other TLS1.0 and one of them have a 128bit private key size. You all understand that from a security point of view, these things arent best practices. Especially if you are a bank ! 128 bits for symmetric key ciphers is actually fin…

It's a "128 bits private key", what means it's assymetric. I fully expect it to be an RSA key, but even for ECC that's at least half the size of something that could be considered secure.

Re: Bank harrasses user because he tweeted screenshot of their SSL certificate

#19
post #16

I support the author and what the bank did is just absolutely wrong and outrageous, but I just want to clarify that this is not a freedom of speech issue. Freedom of speech refers to government restrictions on limiting the right to voice your opinion. The government wasn't involved and he didn't legally have to remove the tweet (but I would have removed the tweet as well if it threatened my job). I totally support th…

> The government wasn't involved

About that, when somebody threatens to sue a person and that is a credible threat, it's because the government is involved.

The minimum guarantee of a democratic legal system is that for an innocent that phrase isn't a threat. If there is no guarantee, it's not a democratic system.

Re: Bank harrasses user because he tweeted screenshot of their SSL certificate

#20

> Firefox suggests some security concerns in the firefox console on both sites. Especially about how weak is sha1 algorithm. Both sites have a 2048 public cert, the one use TLS1.2 but the other TLS1.0 and one of them have a 128bit private key size. You all understand that from a security point of view, these things arent best practices. Especially if you are a bank ! 128 bits for symmetric key ciphers is actually fin…

It's a "128 bits private key", what means it's assymetric. I fully expect it to be an RSA key, but even for ECC that's at least half the size of something that could be considered secure.

TLS uses several algorithms, almost always both asymmetric and symmetric algorithms, in every session. For example, my current connection to HN is TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256. And that does mean that our underlying session key is 128 bits, independent of the size of HN's public key (which turns out to be 2048 bits).

There is a possible argument that a 128-bit AES key and a 2048-bit RSA key are mismatched, but a 1024-bit RSA key is clearly known to be dangerous now, while the same is not at all true for a 128-bit AES key.

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