Monday, December 3, 2012

The other DDoS: Denial of Service by DMCA

In information security, the common definition of DDoS is Distributed Denial of Service attack. However, there is a legally sanctioned form of DDoS: DMCA Denial of Service, where a user acting in good faith is 'denied service' because of an alleged infringement of the DMCA. The DMCA (i.e. the Digital Millennium Copyright Act) provides a means to enforce of copyright protections online and was ultimately responsible for killing Napster (who enabled peer-to-peer sharing of  music and other files). Although the Napster case was cut & dry to some (like the Recording Industry), there are some where users are actually acting in good faith, but are taken down through enforcement of such  an Act.

The case that illustrates this issue is the take down of 1.45 million education blogs in October. James Framer, CEO of EduBlogs, noted that "ServerBeach, to whom we pay $6,954.37 every month to host Edublogs, turned off our webservers, without notice, less than 12 hours after issuing us with a DMCA email." He went on to explain what the actual infringement was: "one of our teachers, in 2007, had shared a copy of Beck’s Hopelessness Scale with his class, a 20 question list, totalling some 279 words, published in 1974, that Pearson would like you to pay $120 for." Reading the blog further it turns out that EduBlogs did actually comply with the DMCA request that they received. However, the issue that Pearson had was (a) it was accessible via Google's cache and (b) it was accessible by its Varnish cache. In other words, James Farmer got legally DDoSed: 1.45 million blogs were made unavailable due to ServerBeach rush to comply with the DMCA instead of "calling any of the 3 numbers for us [ServerBeach] have on file".

Edublogs, however, is not the only company to be DDoSed in this manner. Small companies that publish news reports on YouTube or other content sharing sites also face this danger. Take for example Leo Laporte's This Week in Tech (TWIT) new media network, which publishes tech related podcasts and videocasts. The business model of this network resides on him being able to make the video available soon after its airing. Failure to do so will result in the company losing out on ad revenue because the "eyeballs never made it" to the particular show. Consequently, when one of their episodes gets pulled down by Google's robots, or due to request of the copyright holder (as noted here), it jeopardizes the TWIT business model making him another DDoS victim.

From a risk perspective, the risk of such event should be evaluated, especially for businesses that rely on revenues via the distribution of online content. Specifically, the agreement with the third parties that host their content should include provisions that enable them to at least demonstrate compliance prior to be taken down. However, both James Farmer and Leo Laporte have attempted to work with their respective providers to prevent this type of risk. Farmer complied with the request, while Laporte has attempted to contact Google and explain that he is news organization. So this is easier said then done. Laporte hosts the videos on his own servers, however the popularity of YouTube limits the effectiveness of this "backup strategy" (i.e. users won't go to the site to watch the video instead of YouTube). In the end, it may just be an unavoidable cost of relying on such providers.

From a longer-term perspective, it illustrates clash of legacy laws and the capability of the Internet to "network knowledge". This the concept is taken from David Weinbergers's "Too big To Know", who identified how the ability to share, link and debate information on the Internet transforms knowledge into a more fluid state in contrast to the static nature of books. He explains this concept in the following video:

James Farmer implicitly argued this point in his rant against Pearson when he said: "Here’s another idea Pearson, maybe one that you could take from Edublogs, howabout you let this tiny useful list be freely available, and then you sell your study materials / textbooks and other material around that… maybe use  Creative Commons Non Commercial Attribution license or similar to make sure you get some links and business." In other words, Pearson has failed to understand this new world of networked knowledge, where a link to the "offending" list would link to other resources that has Pearson has - enriching both Pearson and those using its publications.


Monday, November 19, 2012

Hurricane Sandy and Disaster Recovery: Cloud to the rescue?

When looking at the aftermath of hurricane Sandy, the most important aspect of the event is the toll it has had on the people. The Atlantic puts the total impact in terms of dollars at $60 billion, with death toll at 123 people. However, those that survived face the challenges brought about by the flooding and living without power for weeks. For example, 4 million remained without power for extended period of time. This of course challenged individuals to keep their frozen food cold and live without technology for that period of time. As for companies, their disaster recovery plans were put to the test. Perhaps the most poignant example was the New York University Langone Medical Center who had to evacuate patients because their backup generators because they were located in the basements, which got flooded. Hospital officials defended their preparedness  but critics pointed out that the backup power generators "are not state-of-the-art".

Samara Lynn of PC Magazine published an article on how Sandy taught organizations valuable lessons from a Disaster Recovery (DR) perspective (she previously painstakingly put together a 4 part series for small and medium sized businesses on DR planning; see here, here, here, and here). Before I read the article, I was expecting a bulleted list of dos and don'ts when it comes DR planning. But what I was surprised to find is that companies are relying on cloud computing service providers to make up for the unavailability of local processing. Examples include:
  • A New York Architectural firm Diller Scofidio + Renfro used Amazon Web Services (AWS) to relocate the company's core applications, enabling users with the proper license configuration to access these applications right from their laptops. Also, the IT Manager, Chris Donnell, used AWS as a remote desktop during the disaster. (I encourage you to read the whole article as it details how Chris was in the middle of an email migration from Outlook to Gmail when Sandy hit; poor guy!). The company also used Panzura to store the data temporarily in the cloud.
  • Ring Central, a cloud-based pbx hosting service, (they sponsor TWIET and other podcasts on the TWIT network) was able to relocate their operations away from the storm. More importantly, they offer near instant recovery of phone support by plugging in a piece of hardware they can "bring in a live extension under 10 minutes". Naturally, there is an increased interest in Ring Central by those that were satisfied with the lengthy recovery times of their providers. 
The article also discusses how a service provider made DR as part of IT outsourcing service and how the key to DR is backup power. 

Although not related directly to cloud, one of the most amazing story that I've heard is how SquareSpace (SQS) kept it's platform up and running. Like the hospital, SQS had its back up generator in the basement and that got flooded. It published this blog post to inform customers of what was happening. However, the real interesting story is the lengths that team went to ensure the site stayed up and running. The team physically took fuel from the basement to the generator of the roof going up 17 flights of stair

Even more amazing was that the founder and CEO, Anthony Casalena, personally helped in this effort. Talk about Tone at the Top

Saturday, November 3, 2012

Can we live in the cloud? Prof Jeff Jarvis intends to find out

On This Week in Google (TWIG) episode 169, Jeff Jarvis, professor of journalism at CUNY, announced that he will be attempting to live only in the cloud and abandoning the comforts of offline desktops.  He recently moved to the Android eco-system (i.e. for his mobile device and tablet), which he accredits to Google's wide range of services from maps to Google Docs. Taking it to "whole nother level", Jeff is planning to live only in the cloud once he gets his hands on Samsung's ultra-cheap Chromebook, which is expected to retail for $249. The Chromebook (as its names suggests) is based on Google's Chrome OS, where the OS is basically the Chrome browser. Here's the ad in case you missed it:


As illustrated in the ad, the concept is that the Chromebook is something that everyone and anyone can use. The premise is: if you primarily do everything in the browser, then you really don't need a full laptop. A few years ago, as Leo Laporte pointed out in the episode, this experiment by the way of netbooks failed. Does Jeff have a fighting chance or will Leo tell Jeff "I-told-you-so" after Jeff experiment ends? Well, I think Jeff does have a fighting chance. Firstly, cloud computing has matured significantly since netbooks have hit the scene. Secondly, people are now accustomed to using tablets and smartphones as a way to get things done.

In a way the Chromebook represents an intersection between the trend of cloud computing and thin client devices and taking technology back to the early years of computing, where users had to "dial-in" from their "dumb terminals" into powerful mainframes. Except the Chromebook,smartphones, and tablets are replacing the dumb terminals, while the cloud computing service providers are replacing the mainframe.

Why should information security & privacy professionals care about this?

It is really about the price point. If Jeff Jarvis can successfully move to the cloud with this device, it means that the economics of the consumerization of IT has arrived. Think of a 10-person small business that is starting up. It really just needs email and office productivity apps for their clients. The IT cost would be $2500 for the hardware and then recurring cost of $500 a year for the Google Apps. The traditional  Dell laptop + MS Office license would cost about $6480 upfront + the cost of an email server + the IT resources an effort to maintain/patch the laptops and the server.

In terms of data redundancy, one could argue that all the data is on the cloud so it's actually safer. Theoretically, if the owner loses their Chromebook, they can just change their password and then the Chromebook is essentially just a "dumb" piece of hardware with no data. And as illustrated by these stats, this is no small benefit. Of course, cloud computing does have its risks as mentioned on a previous blog post and this publication (which I co-authored for the CICA). It's not that the risks in the cloud are insurmountable, but they are different then the ones we are accustomed to dealing with.

From a usability and information risk perspective I would ask these questions to Jeff Jarvis about his experiment:

  • Printing: What are the hiccups in terms of producing and printing formatted documents? What I am thinking about are the mundane things like resumes, reports and the like. 
  • Working with Luddites: How do you work with others that are not in the cloud? Sometimes working with a colleague the most efficient way to transfer a number of documents is via USB, especially when the other party does not have Internet access (e.g. think of locked down company laptops). 
  • Handling Sensitive Data: What is the sensitivity of the data that is being on the cloud? For example, we keep private things like tax files that contain SSNs, SINs, income, etc offline. So how would one keep such things private or is it matter of just living in public? For readers that are unfamiliar with Jeff Jarvis, he takes "what's the harm approach and has written two books (click here and here) on the topic of being more open and social with one's information. But I hope he can appreciate not everyone uses his "privacy settings" :)
  • Trusting cloud providers: What due diligence does someone do before trusting a cloud provider? I suppose this is a "leading question".  Accounting associations in Canada (i.e. the CICA) and the US (AICPA) have established Service Organization Control (SOC) Reports. These reports replaced the SAS 70 Type II reports in the US and Section 5970 Reports in Canada. So do you need this type of assurance before dealing with companies? Going back to the tax return example, one solution would be to use cloud-based tax services. But how do you establish trust that this information is appropriately. One may attribute my repetitive use of the tax return info to the fact that I am an accountant. However, to be fair Gina Trapani on a previous episode of TWIG did point out an accountant should not be putting tax info on the cloud unless it was encrypted. 
  • Securing data on the lost Chromebook. If the Chromebook is lost, what are the precautionary measures the person has to take? In other words, the theory meet reality. 
  • Making local backups:  Currently, we back from offline to the cloud, but how does this work in reverse? The reason this is important is illustrated by Mat Honan's Apple iCloud account getting hacked and watching helplessly as his data got deleted
  • Working without internet access: How many times does the lack of internet access due to being in a subway or non-WiFi become an obstacle to being productive?
  • Working through cloud outages: What happens if there is a disruption at the cloud provider or underlying infrastructure? Jeff lives in NY (and judging by his tweets; he's doing okay), so he does have some experience dealing with such a scenario given the disaster brought to his area by Hurricane Sandy. 

Assuming Jeff actually does gets his Samsung Chromebook and goes through with this experiment, I will post an update to this post.

Wednesday, October 24, 2012

Did the SC Supreme Court legalize industrial espionage on the cloud?

As reported in Ars Technica, the South Carolina (SC) Supreme Court iruled that gaining access to someone else's email does not violate any laws, specifically the Stored Communications Act. In the case, Jennings vs Jennings, the husband (M. Lee Jennings) was suing his ex-wife's (Gail M. Jennings) daughter-in-law, Holly Broome, (from a previous marriage) for unauthorized access to his personal email account. Holly had guessed the correct answers to the secret questions and gained accessed to his email accounts. She had been asked by her mother-in-law to look at M. Lee Jennings's email because he admitted to her that he was having an affair and had exchanged email correspondences with this woman. Holly printed the emails and provided it to Gail and her defense team, who used it against ML Jennings during their divorce trial.

The Supreme court found that the hacking was not in violation of the Stored Communications Act (SCA) because cloud-based email does not meet the "definition of "electronic storage" within the SCA [which] requires that it must be both temporary and intermediate storage incident to transmission of the communication and storage for the purposes of backup protection".  It should be noted that, as pointed out by William Shapiro on this episode of This Week in Enterprise Tech (it's the first segment so you don't have to listen to the whole episode), that this judgment is only limited to South Carolina.

Wow. In these few small sentences, the SC Supreme Court has allowed unauthorized access to anything that is stored on the cloud. In the last few posts on the UWCISA blog, I have commented on industrial espionage and Microsoft's move of Office to the cloud. On my entry on cloud I noted that the cloud pretty much gives access to law enforcement:
"In terms of privacy, the way the privacy rules works is that if the provider tells you in the ToS that they will hand over things to law enforcement then they are covered from a privacy compliance perspective. (See the Privacy Commissioner's handling of the complaints against CIBC). Furthermore, as noted in this article both American and Canadian law enforcement and other agencies can access what you put on Office 365 and they don't need to do tell you about it. "

On my entry on industrial espionage, I highlighted that, in addition to the risks highlighted by US government officials on using Chinese hardware manufacturers, "it is important to recognize that other factors are at play on the specific issue of ZTE and Huawei and that the risk of Chinese hacks should not be overstated. After all, non-Chinese companies do conduct industrial espionage against one another. For example, SAP had to pay $120 million to Oracle for such activity, which occurred in 2007. But if you raised the threat of German firms hacking to get into American companies, people would think you are not well. So although this threat is real, it is not new and it's not just coming from the Chinese."

Furthmore, I have been immersed in the last few week's in Kevin Mitnick's (wiki, his site) Ghost in the Wires, which details how he hacked into Motorola, Sun, and other major companies.Once you read his story, you will quickly realize how this ruling by the SC Supreme Court makes it open season on any corporation that uses the cloud as means to outsource processing. If an average person, like Holly Broome can access confidential email - imagine what a determined hacker like Mitnick could do!  For example, if you use Google Docs or the soon to be released Microsoft Office 365, then a competitor can gain access without violating the SCA and use that information. Will this judgement spur hackers to relocate to South Carolina and access all types of confidential information stored on the cloud? Of course they can't take patented or copyright information, but what about companies that likely don't have such information patented, trademarked etc or protected by other laws (e.g. privacy legislation, theft of credit cards, etc)?

It's interesting how vulnerable cloud, and technology in general, is to the inability of law makers and judges to see into the future. Common sense would dedicate that a person that buys or uses a service and keeps it secret via a password, expects that the information to be confidential to them. But I am not a lawyer, just an accountant in tech. That being said, it is unlikely that Google, Microsoft, Amazon, and the other tech giants will take this ruling lying down. One can expect that they will use their dollars and influence to allay fears that their services are safe from "legal industrial espionage".

Tuesday, October 9, 2012

Huawei & ZTE: Corporate spies or victims of non-tariff trade barrier

On this episode of the TWIT network's Tech News Today had an interesting discussion regarding the recent allegations that Huawei and ZTE were spying on US companies that purchase and use their equipment. As they hosts of the tech news show pointed out, Congress does not have any evidence that the firms were involved in such activity, but were rather concerned with the relationship of the two companies with the Chinese government. Another interesting point that they pointed out was that Cisco would benefit from such a ban. And according to this article, Cisco has paid $640,000 in lobbying on "measures to enhance and strengthen cyber security". As one analyst quoted by Bloomberg put it, "This is going to allow Cisco and Juniper to compete more fairly". However, Huawei too has been lobbying the US government to the tune of  $820,000. Although many have cited Chinese hackers as a threat, for example, it is suspected that Nortel was targeted over a ten-year period by such hackers. However, it is important to recognize that other factors are at play on the specific issue of ZTE and Huawei and that the risk of Chinese hacks should not be overstated. After all, non-Chinese companies do conduct industrial espionage against one another. For example, SAP had to pay $120 million to Oracle for such activity, which occurred in 2007. But if you raised the threat of German firms hacking to get into American companies, people would think you are not well. So although this threat is real, it is not new and it's not just coming from the Chinese.

Big Data: Some resources

For the CAs and CISAs, looking for the coles notes version of what's going in the world of big data, check out the following podcast by David Linthicum and company; some of the most knowledgeable people on Cloud computing. Chris Daly (who works with Dave) provides a good nine item list based on this article. Chris did us all a big favour by breaking down the slideshow into a nice list of nine points. I will let you click on the link to see what they are, but I thought it was interesting to comment on the first two:

  • "Define the business drivers". It's pretty amazing how this single premise is one of the most critical concepts on business-technology, that requires constant attention! Ironically, I just finished answering a question to a fellow accounting profession who is taking a course on IT controls to emphasize this point. What I explained to him was that the fundamental concept here is that technology changes are driven by business. In other words, IT Strategy or investments must be driven by the overall value drivers of the business.As for why you would not make changes to the system because of technological improvements is because those technologies may have no actual "Return on Investment" (ROI) for the business. In other words, companies should not adopt technology for the sake of technology. 
  • "Discover the data and it’s location". Wow! For those of IT-auditors that run computer assisted audit techniques (CAATS) can really appreciate how these six words can represent a mountain of work! When I teach the computer-assisted audit techniques course at University of Waterloo, I always make a point of warning my students of the practical limits of running CAATs: getting the data can be the hardest aspect of the whole process. For those of you not familiar what CAATs are, they are basically  automated tests that auditors will run using "generalize audit software" on data that is used to support items on the financial audit. You can also use these technique to identify security issues or fraud; see IDEA's Caseware. (Full disclosure: Caseware is a both a sponsor of the Center that supports this blog as well as the course I teach at UW). For example, these tools help perform full analysis of a set of data e.g. identify all the negative amounts in an inventory file or link files to together using a unique identifier to compare the data from one file (e.g. credit limits) to the data in another file (e.g. total amounts owing by the customer. Also, check out the wikipedia entry it's pretty good. 
For other sources, check out the massive (and free) report from McKinsey on Big Data, which they have even made available to run on your Kindle App on your Android or iOS device. Also, check out this CAMagazine article on the topic. This HBR blog post has provides a look at the overall issues, including privacy problems. 

If you have any other resources, especially from an IT Auditor (i.e. security, data integrity, etc), perspective, please do share.

Sunday, September 30, 2012

MS Office goes Cloud: Quick overview of benefits and things to watch out for

Earlier this month, CNET's Mary Jo Foley reported on Microsoft's move to Office 2013. As noted on a previous blog post, this is a huge year for Microsoft as it moves to the tablet-centric  Windows 8 operating system. Well, they seem to be doubling down on dramatic shifts as they launch a SaaS offering of their infamous Office productivity suite; Office 365. Mary Jo reports that Microsoft will be giving a choice between purchasing Office 2013 as "normal" or as a subscription to its cloud version of the software. To sweeten the offer Microsoft is offering the following extras (credits: Mary Jo and Paul Thurrott): 
  • Ability to log-in to 5 different PCs or Macs 
  • Access to Word, Excel, Powerpoint, OneNote, as well Access, Publisher and Outlook
  • 60 Skype World Minutes a month
  • 20 GB of SkyDrive storage
  • Update on security and other patches
  • Access to new functions through the subscription period (i.e. you don't need to wait for the next version)
In contrast, the standard PC-installed version of Office 2013 can only be installed on one machine. Also, to get access to Access, Publisher and Outlook you need to Professional version (Mary Jo has a great table here that explains the different options). 

Office 365 Home Premium is $99.99/year, which covers an "entire household" (i.e. Paul Thurrott explains that it is not tied to a single individual, but can be used any person located at that address). Assuming that this will be same price in Canada, this would amount to $9.42/month (including HST) which is cheaper than two venti lattes at Starbucks. This is in contrast to Office 2013 Professional, which retails for 399.99+HST (and 139.99+HST for the Home & Student version, which includes Word, Excel, Powerpoint, and OneNote). 

However, the big story here is that Microsoft getting the average user  - to the Cloud! (Oh, yes – it was Microsoft that came up with those terrific ads didn't they?). Some may say that this is yesterday's news because Google Docs  has already brought cloud-based office productivity. Although that may be true, if you ask my students they're using Google Docs to collaborate but still rely on MS Office to print a report or assignment. And of course when they go on their work terms, the firms are still using MS Office (so they need to know how it works and be able to use it well).   

In other words: Is the world ready for moving their recipes, financial budgets, and other personal documents to the cloud? 

For those that want the full low down on cloud, they can download this whitepaper from the CICA, which I wrote with Yvon Audette of KPMG. Alternatively, here is a short list of things that you can talk to your friends or whoever that are wondering what happens if they decide to go to go with Office 365 or another cloud based app.

Pay for what you use: In terms of benefits, MS has really sweetened the pie with the extras they noted above. The other implicit benefit is that you are not paying for a static piece hardware upfront. Furthermore, if you decide to change your mind later on you will be out only $100 instead of $400. For example, to buy Office  Professional you have to fork over $400 on the spot, where as with Office 365 you pay as you go (i.e. $100 per year). So if you decide a year from now that you don't use all the extras that Office 365 comes up (i.e. let's say you are not using the extra software, such as Publisher, Access, Skype, etc) you can buy the Starter version or switch to an open source alternative. 


The Cloud Can Go Down, but so can your laptop: There have been cases of cloud outages, as I noted in my last post. Consequently, you should create a local backup of your files from Office 365, so that they are accessible off of the cloud (I am hoping Microsoft will make this easy) and won't get corrupted if there is a problem at Microsoft. However, let's be honest - what's more likely to go down Microsoft or your own laptop? The advantage of Office 365 is that if your laptop goes down, you can always access it from another laptop. In other words, your data is no longer tied to your machine.


You have less control, but you've handed it over to Microsoft (who should know a little bit about good computing practices): It should be clear that you are handing over your files to Microsoft to manage for you. But this may be a good thing, as they may do a better job than you. For example, if you don't do local backups (as you should), then Microsoft likely does. According to this link, they perform an ISO 27001 audit (click here to see what that covers) as well as HIPAA, FISMA, and EU Model Clauses. The certification that is absent is the new SOC 2 (see here for the difference between SOC 2 and SOC1. SOC 1 replaced the SAS 70 Type II reports, which outsourcers previously used and abused).


Terms of service (ToS), assume nothing: In general, cloud service providers have an army of lawyers to indemnify them from pretty much everything. So you should assume if anything goes wrong it's tough luck for you. Also, beware on what they say in terms of who owns the data (ZDNet did an analysis last year for online storage, we hope they update it for the new Office 365). According to this post, Microsoft pays back money for downtime for the Office 365 they were offering to businesses - but it is unclear whether they would do the same for consumers. 


Is a hacker also using Office 365? Amazon's cloud service, EC2, was used by hackers to launch the infamous attack on Sony's PSN. Security researchers were also able to spy on fellow "tenants". So what do these two facts add up to? Hackers will try to see what  vulnerabilities exist in Office 365 to exploit to get data from other users. That being said, hackers are mostly after credit card data and it may be more trouble than it's worth to mine terabytes of cake recipes and essays on Shakespeare to find what they are looking for (but 'big data tools' do make this easier). 


Privacy: accidental disclosures and the reality of law enforcement. In addition to nefarious individuals lurking on the internet, there is a risk that something will go wrong and the wrong user will get access to your documents. For example, Microsoft's precursor to Office 365 (known excitingly as BPOS) experienced precisely this kind of breach (to be fair here is MS's defense). In terms of privacy, the way the privacy rules works is that if the provider tells you in the ToS that they will hand over things to law enforcement then they are covered from a privacy compliance perspective. (See the Privacy Commissioner's handling of the complaints against CIBC). Furthermore, as noted in this article both American and Canadian law enforcement and other agencies can access what you put on Office 365 and they don't need to do tell you about it. 


With Microsoft's push to the cloud, it will be interesting to "consumer outsourcing" works out. For example, how will the masses react to an outage? Will grade school teachers accept the excuse that the "cloud ate my homework"? Or will we be surprised at how adept people are to the new realities of the cloud? For example, people nowadays have camera free parties to manage the risk of the 24-7 surveillance world we live in due to social networks. Practically, consumers can use free open source alternatives to keep their personal documents offline and use Office 365 for things that they don't consider sensitive or to meet the demands of employers/customers and some of these providers are keenly working to make their offerings interact with Office 365. However, the problem is that if they are used to using Excel offline to keep their budgets are they really going to switch to the open source alternative? I guess we will wait and see what happens.