| 09/02/2010 11:40 AM |
| Herding Cats September, Trusting Trust |
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Have you checked out ISSA Connect yet? The next issue is up there with my column, Trusting Trust. What would we do without a little bit of trust? Our lives would certainly be much less convenient, and has the potential to be more secure. If you are a member, log into ISSA Connect and join the discussion! Interact with great professionals globally as well as the authors that you enjoy reading every month. If you are not a member, sign up today! Possibly Related Posts:
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| 09/01/2010 06:01 PM |
| links for 2010-09-01 |
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| 09/01/2010 11:21 AM |
| August 2010 Roundup |
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What was popular in August? I personally closed out the month with a huge milestone, corrective surgery that should hopefully remove my requirement for glasses and contacts. I am in recovery, and can SORTA see this post, so I disclaim any responsibility for the content herein. Actually, should probably do that for the whole blog. Here are the five most popular posts from last month:
Thanks for stopping by, San Diego! Possibly Related Posts:
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| 08/27/2010 09:40 AM |
| PCI DSS versus Y2K |
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Itâs been an interesting week in the PCI DSS world. I was a contributor to a Webcast from First Data on scope reduction using Tokenization. We had the webcasts from the Council about the changes in PCI DSS coming on October 28, and I seem to have gotten a flood of emails reminding me about the community meetings in Orlando and Barcelona. From a global perspective, PCI DSS is slowly making strides in several locales, to the point where I often adjust my daily schedule to help customers in the pacific rim, middle east, Asia, and Europe. Australian and New Zealand based companies seem to be taking particular interest in PCI DSS, equivalent to the levels we saw in early 2007 prior to the Visa CAP enforcing fines. Some of my favorite discussions around PCI DSS are helping companies that are just starting to explore the complex standard. Square 1, as it were. I was on the phone with representatives from a company this week where someone asked me how serious PCI DSS was, and if it would end up being another Y2K1. I had never thought of it that way, but the parallels between how we solved the Y2K problem and how many companies approach PCI DSS are very interesting. Those in the industry that lived through the compliance scrambles of 2007-2009 remember that companies often struggled in year two, because they forgot that PCI DSS was a continual process, and not just some one-time project like Y2K was. All the controls that were put into place and validated either disappeared or were neglected. Big examples of this include quarterly scans, daily log reviews, and change control tickets. For those of you taking on this task today, do yourself a favor and treat it as a journey, not a project. PCI DSS is a process of continuous improvement and a constant reminder of the war that we face with the bad guys. Celebrate your victory of crossing the first mile marker when initially achieving compliance, but donât forget there are many more miles to go. Possibly Related Posts:
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| 08/23/2010 09:45 AM |
| Check me out on the Network Security Podcast! |
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I met up with Martin Mckeay out at BlackHat this year, and we found what we thought was a quiet corner to chat about security. Go check out the Network Security Podcast here! Possibly Related Posts:
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| 08/20/2010 02:21 PM |
| Hey Friends, Iâm Over Here! |
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I recently gave a presentation to a graduate advertising class about social media with ideas on how it might be used as a part of an overall marketing and advertising strategy1. One of the things I covered was the concept of geo-tagging and how it relates to social media. There are tremendous privacy concerns related to geo-tagging, but also interesting market opportunities as well. We ignored the unintended geo-tagging that occurs when people use location services in their mobile phones, or use cameras that are location aware and focused on check-in applications. Some examples of these applications are the popular FourSquare and Gowalla2. Well, it seems Facebook has now joined the fun, and added Places. Included in the launch was an updated Facebook application for iPhone that included the new logo, which as Jay Dolan points out, is a perspective view on a square where the roads draw a four. Is it war? Maybe. But with Facebook falling under fire from privacy advocates recently, will Places stoke the smoldering fire into something more substantial? Of course, you really need to try it to understand how it works. Iâve only begun to experiment with it, but not until I checked the updated privacy settings. It looks like Facebook did this one right and set the defaults to share, but only with your friends. It should probably default to sharing with nobody, but thatâs what we have. There is another area just below this one, however, that requires you to choose if you want to let your friends check you into places (boy this could be fun).
Before you go into the weekend, be sure to check your privacy settings and make sure you have it set the way you want, and then give it a shot! Possibly Related Posts:
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| 08/18/2010 04:06 PM |
| Brief PCI Council Interview in Regards to PCI DSS 2.0 |
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Everybody knows that PCI DSS 2.0 is coming! The Council released a summary of changes for version 2.0 [PDF] to be released in October 2010. Council folks have granted this brief interview to Security Warrior Blog; it is provided below in its entirety: Â Q1: As promised, the changes to PCI DSS are minor. Are you worried that since the next edition will come in 2013, both technology and threat landscape will change way too much and DSS will lose its relevance over time?
[A.C. â I am sure the highlighted bit will rile a lot of noisy security folks with minimum knowledge of the payment industry, but, upon some thinking, I actually tend to agree with it - mostly. The issue is not with ârequirements are staleâ, but with merchants not doing this stuff. Daily log reviews are MANDATORY for PCI DSS compliance (see Req 10.6). Are they ALL doing it? Ha. And people still fall victim to passwords guessing en masse â like its 1983. Even future âPCI in the cloudâ is fairly well addressed by Req 12.8. So please can this âthreats are dynamicâ snivelâ¦]  Q2: Does Council plan to launch any studies on the effectiveness of "the new PCI DSS" vs today's cyber attacks against payment card data?
 Q2: Will there be any changes to Prioritized Approach to PCI DSS document in light of PCI DSS changes?
[A.C. â this means that âimplementation first, policy lastâ thinking will stay in. Intuitively, I get it â policies on their own donât stop loss, while removal of PAN storage does â but I expect a lot of whining over this one as well] Â Q4: Does Council plan any additional implementation guidance along the lines of wireless guidelines to help merchants comply with PCI 2.0?
There you have it. And we wouldnât even have to update our PCI book much :-) Go PCI 2.0! About me: http://www.chuvakin.org
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| 08/17/2010 09:25 AM |
| Whereâs the Breach? |
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All we need to top off this post is a little old lady screaming âWhereâs the Breach?â God bless 80â²s marketing. A merchant out of Austin, Texas is claiming that a breach in their network came from Heartland Payment Systems (HPS), thus it must be their fault. While I am sure this is not the first merchant to be caught off guard, heâs certainly a creative one. Our culture in America seems to relish deflecting blame from oneself on to others. Why, it couldnât be me, it must be that guy over there. Whatâs interesting about this particular case is that the quotes in the article are being interpreted in a manner that is inconsistent with these kinds of breaches and the kinds of services that HPS offers. Iâve seen a few blogs proclaiming a second Heartland breach, but Iâm not sure what specifically would make someone leap to that conclusion. According to their website, HPS does not offer a managed POS solution today (Integrated POS is another story, but I donât see this as being the issue here). Typically an independent dealer or Value Added Reseller (VAR) will sell the POS, manage it, and then send the payment processing component to companies like HPS. Unfortunately, thatâs where things break down1. Restaurants are breached frequently. Restaurateurs rarely hire skilled IT staff to build out the systems that run the kitchen and dining areas (thatâs what the VARs are for), but they typically find ways to use the basic on-premise IT components to differentiate themselves from their competition. Maybe they offer a community PC or free Wi-Fi connectivity to patrons so they can work remotely while enjoying the food and service the location provides. The diagram below depicts a typical restaurant setup: Does anything there seem odd to you? It should. In this case, a Wi-Fi access point is on the SAME NETWORK as the POS devices! The correct placement of a customer-facing Wi-Fi access point is between the firewall and the router2. From the article linked above: âThe spokesman is quoted as saying that somebody had hacked into a computer system âsomewhere between Tinosâ point of sale and their credit card clearinghouse company.ââ Kind of looks like that diagram, doesnât it? One way credit card breaches are found is something called the Common Point of Purchase (CPP) analysis. This analysis will take known compromised cards and analyze the most common place where they are all used. Once a CPP is identified, notification begins and an investigation ensues. In the case of the original Heartland breach, multiple CPPs began coming in, all tied to Heartland and the common cards showing up at multiple merchants. This caused the investigation to shift upstream to focus on Heartland, and we know the history behind that now. In this case, itâs a little too early to try and claim another Heartland breach. Maybe bloggers want to this out just to say, âLook! SEE! I got something right for once!â Based on the information in the article and what I can ascertain from other sources, this looks no different than any other of the thousands of restaurant breaches that occur every year. Possibly Related Posts:
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| 08/16/2010 08:27 PM |
| CloudAudit Delivers â Cloud Compliance Maps |
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CloudAudit delivers itâs first batch of cloud compliance specifications. Quoting from the announcement:
and
Grab the mammoth itself here [ZIP]. Enjoy! About me: http://www.chuvakin.org
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| 08/12/2010 10:56 PM |
| The Council is Such a Tease with PCI DSS 2.0 |
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They totally are!  Giving us this little tiny preview of upcoming changes without really getting too specific.  Itâs like me saying, âDude, that chick is HOT!â Then when you ask me to describe her I say, âItâs a lady all right!â OK, back to the real reason you are reading this, the changes to PCI DSS and PA-DSS slated to drop on October 28 are outlined here. The majority of the document reviews the new lifecycle, how and why changes are made, and the three general types of changes outlined: clarifications, additional guidance (which is just a fancy way to say clarification), and a requirement that is evolving based on new threats or a change in the market. This release represents a positive step by the Council to help key stakeholders understand what is coming, but falters on the execution a bit. Those that have been working with PCI DSS for any period of time quickly learn that the devil is in the details. While this overview is helpful for us to understand where the Council is moving, most of the actual change will be driven by interpretation. On the surface, a significant amount of the change appears to adjust the wording to reflect the intent of the requirements. This is increasingly important in areas that are seeing increased drive and focus on compliance. As new QSAs are certified, the changes will help make up for interpretation nuances that experience will eventually yield. One particularly noteworthy change is the note on the scope of an assessment. While we donât know the ACTUAL change yet, it doesnât appear that some kind of DLP tool will be required to validate scope. That said, it certainly would play a key component in scope validation in addition to interviews. I donât believe QSAs could attest and validate scope without tools in conjunction with interviews1. Another change that specifically popped out at me was the centralized logging requirement for PA-DSS. It may signify a lack of attention to detail by QSAs assessing companies that deploy products capable of complying with PA-DSS. Many PA-DSS compliant applications can be configured in a non-compliant way, and with downward price pressure on QSAs2, sometimes shortcuts happen. Iâm not saying that Iâve ever done it, but Iâve walked into a customer that had their entire POS environment ignored because the assessor saw it on the PA-DSS compliant application list3. I wouldnât rush to download and read the five page release, but put it in your âto read sometimeâ pile. Your best bet may be to register for the webcast on August 24th, but unless Russo getâs something more than a prepared statement based on this document, thatâs probably not even worth attending (except to see if someone torpedos his notes like the last one). Possibly Related Posts:
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| 08/05/2010 07:25 PM |
| Herding Cats August: Embrace the ISA Program |
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Have you checked out ISSA Connect yet? The next issue is up there with my column, Embrace the ISA Program. Some industry folks fear the empowerment that the Internal Security Assessor program from the Council brings to the table. I, for one, see it as an opportunity to more accurately assess PCI compliance. Oh, and the Hoffacino makes a cameo If you are a member, log into ISSA Connect and join the discussion! Interact with great professionals globally as well as the authors that you enjoy reading every month. If you are not a member, sign up today! Possibly Related Posts:
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| 08/04/2010 09:27 AM |
| Why your QSA should not be your Security Partner |
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This one is link-laden folks. Enjoy Itâs just mere weeks before weâll see the FOURTH iteration of the PCI DSS, and companies inside the US seem to be getting better at it as we go. PCI continues to be a driving force in information security, and as the standard changes, your business environment will undoubtedly change as well. Many merchants and service providers mistakenly depend on their QSAs to find all security and PCI compliance issues. Considering the downward market pressure on assessment prices, many security professionals are discussing how QSAs are pressured to get a complete and compliant ROC in the cheapest way possible. QSA companies are motivated by three main things:
If you enter into a contract expecting your QSA to find everything, or to be some form of liability transfer, you are misleading yourself into a false sense of security1. QSAs are indirectly trained to create great reports, but in order to gain the efficiency required to compete, much of the ROC is complete before the engagement even starts. Â The executive summary and details in each requirement still need to be written, but you canât do much more for 10-20K. This is not to say that you should start spending hundreds of thousands of dollars on QSA assessments, but when you consider that many assessments are performed with only one assessor for a short period of time, shouldnât you ensure that you are not just going through the motions of fooling a hurried QSA? Letâs assume that your QSA is better than most and is helping you work through security AND compliance issues. Why would you let your QSA design your controls as well as assess against them? Gartner published an opinion in 2007 that the Payment Card Industry has much to learn from the financial auditing industryâin particular the notion that the firm providing validation services should not be the same firm to provide consulting solutions around security and PCI DSS2. Sure, itâs easier to deal with one firm instead of two, but are you really getting what your management is (at least in spirit) asking for? Â It should be validation that you are in fact compliant with PCI DSS to lower the chances of a breach and ensure that if one occurs, you wonât be subject to the same fines as an entity that was found to non-compliant. That is why you need to use a different firm for consulting around security and PCI than you do for assessment or audit work. Â Itâs the same generally accepted principal that you would use in other audit scenarios, and it will lead to a better overall result: You will gain confidence3 that you are both more secure and compliant after spending ridiculous sums of money to meet that end state. It may not be the easiest way to go, but it certainly makes for a generally better outcome. Possibly Related Posts:
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| 08/02/2010 03:19 PM |
| July 2010 Roundup |
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What was popular in July? We wrapped the month with some fantastic presentations at Blackhat, Defcon, and BSides. I am enamored with the fun stuff browsers can do (and not so fun things to the people that ineptly run them), and approaching application security with a renewed vigor. Here are the five most popular posts from last month:
Thanks for stopping by, San Diego! Possibly Related Posts:
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| 08/02/2010 07:04 PM |
| Monthly Blog Round-Up â July 2010 |
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Blogs are "stateless" and people often pay attention only to what they see today. Thus a lot of useful security reading material gets lost. These monthly round-ups is my way of reminding people about interesting blog content. If you are âtoo busy to read the blogs,â at least read these. So, here is my next monthly "Security Warrior" blog round-up of top 5 popular posts/topics.
Also, below I am thanking my top 5 referrers this month (those who are people, not organizations). So, thanks a lot to the following people whose blogs sent the most visitors to my blog:  See you in August; also see my annual âTop Postsâ - 2007, 2008, 2009! P.S. Watch for a fun post tomorrow, releasing a new SIEM whitepaper that I wrote for a client. Possibly related posts / past monthly popular blog round-ups:
About me: http://www.chuvakin.org
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| 07/28/2010 09:23 AM |
| 2010 Verizon Business Data Breach Report Released |
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Verizon Business released their 2010 Data Breach report hours ago, and with the combination of Secret Service data for the 2010 report, there is a ton of interesting things in here. Â Here are a few of the highlights that I took from the report:
What are some key, actionable takeaways that we can run with for our security planning in 2010 and 2011?
Go download this today and read through it for more insights on what is going on in real world breaches! Possibly Related Posts:
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| 07/23/2010 04:26 PM |
| A Thought to Take You to the Weekend |
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Itâs been a crazy week, and Iâve been busy gearing up for BlackHat on top of all the fun stuff my day job entails. Â To close out the week, I wanted to throw something at you that I thought about while discussing how to better approach compliance initiatives. Itâs a simple one liner that really describes why companies should invest in security instead of compliance:
Compliance should not be the notion that drives security in your organization. Security, among other things, should support and drive compliance. Compare that to your approach. Â Does that fit with how you execute your security strategy? Â If not, why? Possibly Related Posts:
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| 07/20/2010 06:01 PM |
| links for 2010-07-20 |
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| 07/19/2010 06:01 PM |
| links for 2010-07-19 |
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| 07/20/2010 09:10 AM |
| PCI Council, How About a Map? |
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When I started writing this post, I was trying to think of a metaphor for a map and a journey of some sort, but everything came out dripping with Cliché Cheese1 or would have made sense only to a limited audience (Shout out to the P1, between the devil and the deep blue sea, and kick the tires and light the fires⦠as it were). The point I was trying to make, however, was in light of PCI, we seem to be navigating a changing world with a semi-static map. Like that GPS I bought seven years ago that freaks out every time I drive on a road that was completed four years ago. As I wrote about last week, the Council has now extended the lifecycle to every three years, which overall I think is a good thing. But what is missing is solid guidance from the Council (not speculators) on where this thing is going between those updates. Using a somewhat recent example, application vulnerabilities were on the rise long before the infamous Requirement 6.6 was introduced into the standard. Having some basic thoughts on Web-Application Firewalls and code reviews before the requirement was introduced would have at least started the discussion. Itâs not like all the sudden electronic commerce was a big thing after PCI 1.0 was released. What the Council needs is a best practice area that constitutes recommendations from industry groups and the SIGs that has been vetted by the Council. This list of best practices would be technologies or processes that companies should become familiar with because they stand a good chance of being incorporated into the standard. Right now, itâs impossible to know definitively what the Council is âthinking.â Sure, we have the PR-driven evangelism2, but what we donât have is a concrete picture on where they think the future of PCI DSS is going. Because, frankly, it doesnât matter what guys like me think. Providing this forethought allows merchants and service providers to at least get a LITTLE bit of direction from the Council which helps:
Imagine if the Council had a place that listed three to five technologies as beneficial to protecting cardholder data and key items it was considering for future versions of PCI DSS. As an industry, I believe we would actually see a few early adopters in the form of companies with savvy CISOs that get more input into their process and can better frame their requests to the rest of the executive team3. Possibly Related Posts:
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| 07/15/2010 09:30 AM |
| Tokenization and Chargebacks |
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The NRF released a brief yesterday discussing the clarification Visa made to the operating regulations related the storage of full card data after the transaction. As suspected, some acquirers and processors were interpreting the rule to mean that Visa required merchants to store the full card number for things like chargeback processing1. Of course, with a phone call, acquirers quickly seemed to learn what the real intent of the rule was. I can only describe this second hand, but hereâs what I know for sure. Over the last 6+ years, I have worked with many merchants to help them rid their systems of PANs. In exactly zero instances, I have had an acquirer or processor require a merchant to store this data post settlement for chargeback purposes. Sometimes it takes a little dot-connecting (like at one particular LARGE processor that shall remain nameless), but ultimately a few hours of work on behalf of my clients got written statements from their processors allowing truncated numbers for chargebacks. Not just for Visa, by the way⦠but for EVERY payment brand. In addition, Visa released their own brief on tokenization best practices.  Iâm disappointed that Visa remained rather ambiguous on their statements about tokens, and left the definition as broad as they did. As Iâve argued before, a token should NOT have a mathematical relationship to the original value (which is essentially the definition in PCI DSS today⦠Requirement 3.4, index tokens, albeit still linked to a cryptographic value, but traditionally not cryptographically related). Their definition just says it should not be computationally feasible, though also referring to doing this via a âknown strong cryptographic algorithm.â Leaves some room for interpretation! Had I written the brief, I would say that a token cannot have a mathematical relationship to the original value, and instead, should be a reference value. Instead, Iâd call things like hashes and other cryptographic-based âtokenâ technology simply cipher textâbecause thatâs exactly what it is. Regardless of your market position, I think that we can all (though in some cases anonymously) agree that the best option for a token is one that is not mathematically relatedâcomputational feasibility be damned. Possibly Related Posts:
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