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Bank harrasses user because he tweeted screenshot of their SSL certificate
- BillyBob1 12y agoThat's nuts
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- lotsofmangos 12y agoHe 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.
- simonmales 12y agoI 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.
- agumonkey 12y agoI wonder if they received help offers too. Shedding light on security holes is useful, but fixing them is even better.
- cordite 12y agoDid the second (bad behaving) bank get named?
- ExpiredLink 12y ago> I really hope the bank gets a lot of bad publicity out of this. It's a Greek bank. They couldn't care less about 'bad publicity' nowadays.
- otakucode 12y agoI would sooner expect a bank to accidentally share their private key on social media. Banks aren't bad at security by accident. They don't have good, solid security people working for them being held back by management (as some industries do). Banks take the long view on most things and are ill-prepared for dealing with something like security, where the situation changes moment by moment. They are also extremely loathe (more than most industries I would say) to spend a penny on anything which they can not predict a tangible return on investment. Hmm.. with the large number of security firms popping up every day, has anyone actually done some studies and statistical analysis so that it can be said "If you save $200,000 this year by not hiring a competent security professional, there is a 30% chance your bank will lose more than $10 million in either direct intrusion or public scandal"? That is the sort of thing a banker needs to hear before he can determine whether it is actually WORTH being safe. And even then... hiring competent security people is really hard. How is a normal HR person supposed to be able to judge whether an applicant is competent?
- andrewrice 12y agoSite seems to be down.
- mod 12y agoThat's what google cache is for: http://webcache.googleusercontent.com/search?q=cache:BJedQ1nzCI0J:ebalaskas.gr/blog/2015/03/13/web-bank-security/+&cd=1&hl=en&ct=clnk&gl=us http://webcache.googleusercontent.com/search?q=cache:BJedQ1n...
- zo1 12y agoTad 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.
- steego 12y agoIt's more than ironic. I'm actually concerned about this guy. It appears he might be in the cross-hairs of some individuals who are willing to leverage whatever they have at their disposal to shut him up and maybe make an example out of him.
- dublinben 12y agoThis is an excellent example of why censorship resistant name resolution and hosting are so necessary. With projects like Namecoin and Freenet, this wouldn't be a problem.
- StavrosK 12y agoAs a Greek, I find that rather unlikely, not only is this sort of censorship rare, but the government is too inefficient to get something done this quickly (or at all) even if they wanted to. I'm fairly sure this is just heavy load. EDIT: Yeah, it's back up.
- spectre256 12y agoIt'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 https://www.ssllabs.com/ssltest/analyze.html?d=nbg.gr their twitter account is: https://twitter.com/ibanknbg https://twitter.com/ibanknbg EDIT: The most effective outreach will be friendly and respectful, if anyone chooses to do this. Also, all the other major greek banks score poorly: Piraeus Bank Score: F! https://www.ssllabs.com/ssltest/analyze.html?d=www.piraeusbank.gr&s=199.83.134.245 https://www.ssllabs.com/ssltest/analyze.html?d=www.piraeusba... twitter:https://twitter.com/skepsouprasina https://twitter.com/skepsouprasina Alpha Bank: B https://www.ssllabs.com/ssltest/analyze.html?d=www.alpha.gr&s=193.193.185.72 https://www.ssllabs.com/ssltest/analyze.html?d=www.alpha.gr&... twitter: https://twitter.com/alpha_bank https://twitter.com/alpha_bank Eurobank: Score: F! https://www.ssllabs.com/ssltest/analyze.html?d=eurobank.gr https://www.ssllabs.com/ssltest/analyze.html?d=eurobank.gr twitter:https://twitter.com/Eurobank_Group https://twitter.com/Eurobank_Group
- simi_ 12y agohttps://twitter.com/ansimionescu/status/576425676036780032 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.
- fragmede 12y ago> you wouldn't fuck with casinos, or the mob. Why wouldn't I, from the other side of the world, from the wifi connection of a coffee shop on the other side of town, bounced through a couple VPNs? It's one thing if I have to walk inside the casino, but the internet isn't like that.
- exelius 12y agoNo, that that bank on the other side of the world is likely insured by a company in the US. The global financial system is intricately linked, and the bankers and insurance companies effectively run the global economy. Given that, do you think it's really a huge stretch to think that three letter agencies from the US - the ones with documented capabilities to de-anonymize your VPNs if your OpSec is even a little sloppy - might get involved? Jurisdiction wouldn't be an issue if the bank asked them for help. There are many ways to ensure security: one is technical, and another is investigative. The amount of resources a bank can bring to bear on you if you steal money from them is immense - IMO it's just best not to mess with that shit. It may have been true at one time that you could outsmart the banks and get away with it, but there are just too many smart people watching anymore.
- some_furry 12y ago> 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 fine. Especially with AES. TLS1.0 and SHA1 certificates? I'd expect better. > The second bank has also a cross site javascript script and that’s for sure not a best practice. Again that’s not a security hole. They just pull a javascript from their official web page (although a different url/domain from their web banking). Yay, watering hole attack vectors.
- marcosdumay 12y agoIt'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.
- schoen 12y agoTLS 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.
- marcosdumay 12y agoSymmetric encryption does not have the concept of a "private key". A 128 bits private key in TLS can only vary from almost useless (if it's some ECC algorithm) to completely useless (in case it's RSA). Too bad (but understandable) that the article does not give any detail. About a decade ago, 128 bits RSA keys were widely used (but not recommended anymore), I wouldn't be surprised to discover a bank didn't change their security procedures since then.
- VieElm 12y agoI 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.
- marcosdumay 12y ago> 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.
- notahacker 12y agoNecessary conditions to ensure an innocent person need not feel threatened by the prospect of litigation include a time, money and irritation-free trial process and omniscient judges. Your "minimum guarantee of a democratic legal system" is an impossibility, unless tort law is altogether abolished, and good luck seeking democratic approval for that...
- marcosdumay 12y agoThere are several ways to make it happen in practice (where things are not boolean). Imposing penalties to the suing party on stupid cases is one such way. One can also make the legal system cheaper, make it less irritating (as most of the irritation is accidental), level the playing field for people against giant corporations (and, while we are at that, also level for small corporations against big corporations)... There are probably hundreds of other actions that'll help, if none are taken, it's a huge sign that a legal system is already brought.
- woah 12y agoWhich bank was it?
- cgtyoder 12y agoNational Bank of Greece (https://www.nbg.gr/en https://www.nbg.gr/en, @ibanknbg)
- lepht 12y agoThat's incorrect: > The first bank contacted almost immediately with me and I respect National Bank of Greece for that.
- nekopa 12y agoActually, to quote the article: The first bank contacted almost immediately with me and I respect National Bank of Greece for that. The second bank took another approach.
- andmarios 12y agoNo, he writes that there were SSL related problems with two banks. The first one was the National Bank of Greece. They contacted him directly and were nice about it. The second bank was the one that showed this appalling behaviour and isn't mentioned in his blog post, probably out of fear.
- WizKid 12y agoA friend went through the Swedish banks and ranked them (post in Swedish https://friendlybit.com/security/hur-sakra-ar-svenska-banker/ https://friendlybit.com/security/hur-sakra-ar-svenska-banker... and Google translate https://translate.google.com/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=https%3A%2F%2Ffriendlybit.com%2Fsecurity%2Fhur-sakra-ar-svenska-banker%2F&edit-text= https://translate.google.com/translate?sl=auto&tl=en&js=y&pr... ) The response he got was the banks starting fixed their problems. He had one group of banks that he classified as you should stay away from. All those banks fixed things so they are not longer in that category
- ptaipale 12y agoInterestingly, Nordea, which gets an A- in Sweden, still gives an F for their front page in Finland. So it looks that even if the same bank operates with the same brandname, the security level may be quite different. Their internet banking front page domain name has a different environment which gets a B, but most people go to it via the front page that is still vulnerable to POODLE and what not.
- silvestrov 12y agoDitto for Denmark: https://www.ssllabs.com/ssltest/analyze.html?d=www.netbank.nordea.dk https://www.ssllabs.com/ssltest/analyze.html?d=www.netbank.n...
- jvehent 12y agoAlong the same line, there are currently around 4,000 sites in Alexa's top 1 million that only support RC4. Nothing else. Some of these sites have large user bases too, and it's making it hard to disable RC4 in Firefox. https://bugzilla.mozilla.org/show_bug.cgi?id=1138101 https://bugzilla.mozilla.org/show_bug.cgi?id=1138101
- walterbell 12y agoThat list includes Priceline, Orbitz and American Airlines. Hard to believe. Is there a browser plugin that could report on SSL health in real-time, when visiting a site?
- madaxe_again 12y agoYou're all talking about the bank's response - but I actually think his employer's reaction was worse. Threatening to fire him for a tweet from a personal account? What Kafkaesque bullshit is this? Frankly, I'd be taking them to a tribunal - and I'm an employer. The idea of pulling that kind of shit on anyone fills me with disgust.
- wodenokoto 12y ago"Some guy who is wrong is threatening to beat me up unless I hit you or you change your tweet" It's not like the employer said "you wrote an unfriendly tweet now you are fired!" The bank was threatening the employer with legal action unless action was taken.
- K0nserv 12y agoBut what kind of case could the bank possibly have against his employer of all people? I would think that any sane judge would dismiss that case as completely ridiculous pretty quickly. His employer is just as much at fault for being spineless and not sticking up for their employee who did nothing wrong as the bank is for harassing him.
- madaxe_again 12y agoYeah, and any employee with a shred of self respect would tell the bank to go hang. I've had clients complain about what staff say on social media (not about clients or work!), I just tell them it's none of their or my business, and if they really care, get your lawyers in touch. Nobody has.
- sandstrom 12y agoSomeone created a site called https-watch, to list banks, government sites etc. that aren't using HTTPS properly but should be. It has a built-in 'tweet to this entity' link, similar to what this guy did by himself. Perhaps someone can open a Greek sub-section on the site, with links to these banks. https://httpswatch.com/global https://httpswatch.com/global