Category Archives: Opinion

Guest Post: More on BYOD

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As the world of computers, mobile devices, and technology in general, continue to exponentially evolve, so too must our need and desire to secure our communications, our data, and to that end our privacy. There is hardly a day that goes by anymore that we don’t hear of some major security breach of a large corporation, but this also directly impacts the individual. We have to make a concerted effort to protect our information – particularly on our mobile devices. Our mobile devices are inherently difficult to secure because they send their data over WiFi, which is susceptible to man-in-the middle attacks. We must pursue the security of our data on our mobile devices passionately. People nowadays carry so much private and more importantly valuable information on them that we just absolutely have to protect it. Particularly in this age of BYOD (bring your own device) to work. An even more difficult realm for the infosecurity folks trying to protect their networks. How does one protect a device on a network from malicious intent? How does one keep viruses, Trojans and worms off of the networks when everyone seems to be plugged in to their devices? This article intends to describe some steps that one can take to protect their mobile device both locally by encrypting the mobile device itself and also by utilizing apps that help to secure their email and telemobile device conversations from malevolence.  

 

As noted on the previous article on State of Security released on June 17, 2014, Brent recently discussed 3 tips for BYOD, which were to get these devices off of the production networks, teach people about mobile device security, and finally use what you already have to your advantage when it comes to your own architecture when developing BYOD policies and processes.

 

There are numerous steps that the IT folks can take to help secure their networks in this age of BYOD as mentioned in our previous article, but there are also some very simple and usefultips that we can all follow that will help us in protecting our mobile devices too.

 

Every company should have policies in place regarding the use and misuse of BYOD devices. This must include encryption of the data and remote wiping of the data if the device is lost or stolen, (such as Find my iMobile device, Android Lost, Mobile Security, and Autowipe,). Assuming the BYOD device is under the company’s control.  If not then as  mentioned in the previous article getting these devices off of the production network is a must. Every  company should at least require authentication and hopefully two-factor authentication of the device.  This would allow the organization some degree of control when it comes to resetting passwords, locking the device when it’s not in use, logging, etc. If it’s not, then asking employees to adhere and sign a code of conduct with regard to their device is a must, as well as periodic employee education. A quick Google search will reveal apps that can help with two-factor authentication too. Such as RSA Secure Alternative, SMS passcode, and Duosecurity.

 

The next step is to encrypt the mobile device itself upon ending your session. Thereby protecting your information from even the apps that you currently having running on the mobile device itself. All apps go through an approval process where they are tested, validated and checked for security, but there have been times where an app passed through such a process and still contained malicious code that sent back stolen personal information to the attacker. This is a particular issue in the Android market. Companies such as Cryptanium and Arxan offer integrity protection, jailbreak detection, anti-debug detection and reverse engineering protection. So if a attacker does manage to get ahold of your device it makes it much more tamper resistant. 

 

Apps that offer encrypted communication such as voice, video, text and/or file transfers are also a consideration. Silent Circle, Redmobile device and Whisper Systems offer such encrypted communication for a fee. Wickr and Cryptocat do this too, but are free. If you are just interested in encrypted text messages (SMS) then perhaps Babel, Whisper, or Akario is for you.

 

In today’s mobile device market there are a plethora of apps many of which do what they describe when it comes to helping to protect our information. Yet as with anything else if there is a will, there is a way, this is particularly true for those that mean to steal our information. If they have a desire to acquire your information they will make a concerted effort to try to extract it from your device. It is up to us to make it as difficult as possible for them to ever get it. For now there does’t seem to be a lot of apps that actually encrypt all of your information locally to the mobile device. Or if it does offer some degree of encryption then it does so over a potentially vulnerable, networked platform. In short there is no single magic bullet that will encrypt all of your mobile devices data and communications for free, but there are some out there for a fee will offer to do so. The other issue that arises is if you use said company do they have access to the information that you were trying to protect in the first place. What’s to keep a rogue employee from accessing your data? All of this can make your head spin. The moral of the story is to make good choices, use your common sense and don’t put anything on a mobile device that you aren’t willing to share with others. Be safe out there.

 

About Preston:

Preston Kershner is new to the info-security family, where he has a variety of lateral interests in topics such as cybersecurity, information security, incident handling and response, computer forensics and malware analysis. Preston has been in the medical field for over 20 years and is currently transitioning into the infosec community. When not being an information junkie, Preston enoys spending time with his family. He also enjoys learning everything he can about astrobiology (the search for exoplanets that have a potential to habour life). You can follow Preston as he continues to expand his knowledge and experience in these realms at http://www.linkedin.com/pub/preston-kershner/3a/493/965/ & follow him on Twitter (@redman7373).

 

About Brent:

Brent Huston is the Security Evangelist and CEO of MicroSolved, Inc. He spends a LOT of time breaking things, including the tools/techniques and actors of crime. When he is not focusing his energies on chaos & entropy, he sets his mind to the order side of the universe where he helps organizations create better security processes, policies and technologies. He is a well recognized author, surfer, inventor, sailor, trickster, entrepreneur and international speaker. He has spent the last 20+ years dedicated to information security on a global scale. He likes honeypots, obscure vulnerabilities, a touch of code & a wealth of data. He also does a lot of things that start with the letter “s”. You can learn more about his professional background here: http://www.linkedin.com/in/lbhuston & follow him on Twitter (@lbhuston).

 

Disclaimer:

It should be noted that some of the apps are free, some apps are cloud-based, some are open source and some are at a cost to the consumer. In no way do we endorse the applications in this article. 


Crypto Locker Down, but NOT Out

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So, the US govt and law enforcement claim to have managed the disruption of crypto locker. And officials are either touting it as a total victory or a more realistic slowdown of the criminals leveraging the malware and bot-nets.

Even as the govt was touting their takedown, threat intelligence companies around the world (including MSI), were already noticing that the attackers were mutating, adapting and re-building a new platform to continue their attacks. The attackers involved aren’t likely to stay down for long, especially given how lucrative the crypto locker malware has been. Many estimates exist for the number of infections, and the amount of payments received, but most of them are, in a word, staggering. With that much money on the line, you can expect a return of the nastiness and you can expect it rather quickly.

Takedowns are effective for short term management of specific threats, and they make great PR, but they do little, in most cases, to actually turn the tide. The criminals, who often escape prosecution or real penalties, usually just re-focus and rebuild. 

This is just another reminder that even older malware remains a profit center. Mutations, variants and enhancements can turn old problems like Zeus, back into new problems. Expect that with crypto locker and its ilk. This is not a problem that is likely to go away soon and not a problem that a simple takedown can solve.

Quick Poll on Social Media and Compliance

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Our team is putting together some blog posts and other content on social media policies and compliance. Can you please help us with our research work by spending just 3 minutes to complete the following quick 3 question poll?

You can find the poll here.

Thanks, in advance, for your insights. We will be publishing the results of the poll, along with our other content in the coming weeks. Thanks again for your kindness!

The Big Three

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Information security techniques certainly are improving. The SANS Top Twenty Critical Controls, for example, are constantly improving and are being adopted by more and more organizations. Also, security hardware devices and software applications are getting better at a steady rate. But the question we have to ask ourselves is: are these improvements outpacing or even keeping up with the competition? I think a strong argument can be made that the answer to that question is NO! Last year there were plenty of high profile data loss incidents such as the Target debacle. Over 800 million records were compromised that we know of, and who knows how many other unreported security breaches of various types occurred?

So how are we going to get on top of this situation? I think the starkly realistic answer to that question is that we aren’t going to get on top it. The problem is the age old dilemma of defense versus attack; attackers will always have the advantage over entrenched defenders. The attackers know where you are, what you have and how you defend it. All they have to do is figure out one way to get over, under or around your defenses and they are successful. We, on the other hand, don’t know who the attackers are, where they’re at or exactly how they will come at us. We have to figure out a way to stop them each and every time – a daunting task to say the least! Sure, we as defenders can turn the tables on the information thieves and go on the attack; that is one way we can actually win the fight. But I don’t think the current ethical and legal environment will allow that strategy to be broadly implemented.

Despite this gloomy prognosis, I don’t think we should just sit on our hands and keep going along as we have been. I think we should start looking at the situation more realistically and shift the focus of our efforts into strategies that have a real chance of improving the situation. And to me those security capabilities that are most likely to bear fruit are incident detection, incident response and user education and awareness; the Big Three. Over the next several months I intend to expand upon these ideas in a series of blog posts that will delve tactics and means, so stay tuned if this piques your interest! 

Thanks to John Davis for writing this entry.

Let’s Get Proactive with End User Security

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Where do most of the threats to the security of our IT systems lurk? The Internet, of course! Powerful malicious software apps are all over the Net, like website land mines, just waiting to explode into your computer if you touch them. And how about accessing social networks from your company work station? Do you really think that content on these sites is secured and only available to those you chose to see it? If so, then I’m sorry to disillusion you.

So why do most concerns still let their employees casually access and surf the Web from their business systems? Especially in the present when most everyone has a smart phone or pad with them at all times? Businesses should embrace this situation and use it to their advantage. Why not set up an employee wireless network with all the appropriate security measures in place just for Internet access? (This network should be totally separate from business networks and not accessible by business computers). It’s not expensive or difficult to administer and maintain a network like this, and employees could access websites to their hearts content (on their off time of course). And for those employees that are without a smart phone (an ever dwindling few), you could stand up a few kiosk computers that they could access using their employee wireless network password.

As for employees that need Internet access to perform their work duties, you should lock their access down tight. The best thing to do is to add needed websites to a white list and only allow those employees with a business need to access only those websites that are necessary and no others. Black listing and web filtering are partially effective, but they don’t really work well enough. I can’t tell you how often we have seen such filters in place at businesses that we assess that prevent access to gaming and porn sites, but still allow access to traps like known malicious websites in foreign countries! Go figure.

And don’t forget to properly segment your business networks. Users should only be allowed access to those network resources that they need for business purposes. Users in workstation space should never be allowed to “see” into server space. Preventing this will go a long way in curtailing attacks from the other big danger – the malicious insider. 

Thanks to John Davis for writing this post.

On Complexity & Bureaucracy vs Security…

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“Things have always been done this way.” —> Doesn’t mean they will be done that way in the future, or even that this is a good way.

“We know we need to change, but we can’t find the person who can authorize the changes we need.” —> Then who will punish you for the change? Even if punishment comes, you still win, as you’ll know who can authorize the change in the future.

“We don’t have enough time, money or skills to support those controls, even though we agree they are necessary.” —>Have you communicated this to upper management? If not, why not? How high have you gone? Go higher. Try harder.

“That’s too fast for our organization, we can’t adapt that quickly.” —>Welcome to the data age. Attackers are moving faster that ever before. You better adapt or your lack of speed WILL get exploited.

In many of my clients, complexity and bureaucracy have become self re-enforcing regimes. They lean on them as a way of life. They build even more complexity around them and then prop that up with layers and layers of bureaucracy. Every change, every control, every security enhancement or even changes to make existing tools rational and effective, is met with an intense mechanism of paperwork, meetings, “socialization” and bureaucratic approvals.

While many organizations decry “change management” and “security maturity” as being at the core of these processes, the truth is, more often than not, complexity for the sake of bureaucracy. Here’s the sad part, attackers don’t face these issues. They have a direct value proposition: steal more, get better at stealing and make more money. The loop is fast and tight. It is self correcting, rapid and efficient.

So, go ahead and hold that meeting. Fill out that paperwork. Force your technical security people into more and more bureaucracy. Build on complexity. Feed the beast.

Just know, that out there in the world, the bad guys don’t have the same constraints.

I’m not against change controls, responsibility or accountability, at all. However, what I see more and more of today, are those principals gone wild. Feedback loops to the extreme. Layers and layers of mechanisms for “no”. All of that complexity and bureaucracy comes at a cost. I fear, that in the future, even more so than today, that cost will be even more damage to our data-centric systems and processes. The bad guys know how to be agile. They WILL use that agility to their advantage. Mark my words…  

Twitter Stream About Online Card Fraud & Crypto Currency

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The other day, I was discussing the idea that as the world moves more strongly toward chip and pin credit cards, that the levels of online credit card fraud were likely to skyrocket. Joel, the @SCADAHacker took me to task, and I thought I would share with you our conversation (with his permission, of course.) Here it is:

@lbhuston: Time to Get Moving on Chip and PIN? ow.ly/tvyZa <There are downsides to this too. It will help physical, but up online fraud.

@scadahacker: @lbhuston Please explain your reasoning on this and why it would be any different than current mag-based cards for online purchases. [sic]

@lbhuston: @SCADAhacker The threat won’t be different, but the criminals that now work physical card fraud will migrate their value stream to online.

@lbhuston: @SCADAhacker In other words, the crime rings powered by card fraud will simply compensate for the controls by switching fraud vector.

@lbhuston: @SCADAhacker This has been historically valid, & I think applies here. Most of those rings already have online fraud skills, they extend.

@lbhuston: @SCADAhacker Make sense? Sorry, hard in 120 char bursts. Sorry for the multiples. 🙂

@lbhuston: @SCADAhacker The really sad thing is that it is the best path forward. Chip cards work, for now. Also look for forgery to accelerate. 🙁

@scadahacker: @lbhuston Agree.  Good point my friend!

From there, I went on to discuss another concern that I am focusing on at the moment, crypto currency.

@lbhuston: @SCADAhacker Sadly, another thing I am watching closely is the impacts of crypto currencies on old school political corruption. Few controls

@lbhuston: @SCADAhacker Many law enforcement & govt watchdog groups don’t have digital chops to even understand something like bitcoin. 🙁

@lbhuston: @SCADAhacker Here’s my derby talk from 2 years ago. bit.ly/QQ4Skq <The innovate crime 4 profit is why I follow a lot of this.

@scadahacker: @lbhuston Thanks bro!

As always, Joel and all of my readers are welcome. Thanks for reading what I have to say and for allowing me to voice my thoughts and concerns. If you don’t already follow Joel, you should, he is world class and in addition to being brilliant, is a heck of a nice guy, too. Reach out and Twitter and let me know what you think. Do you think card fraud is about to turn a corner? How will crypto currency influence the future political process? Am I just being paranoid? Give me a shout at @lbhuston and let me know what is on your mind.

PS – It looks like some of these ideas are being thought about around the world. Here are some other folks thinking along the same lines. Click here, here, here or here.

Digital Images and Recordings: How Can We Deal with the Loss of Trust?

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For many decades now the human race has benefitted from the evidentiary value of surveillance videos and audio recordings. Human beings cannot be relied on to give accurate accounts of events that they have witnessed. It is a frustrating fact that eye witness testimony is highly inaccurate. More often than not, people are mistaken in their recollections or they simply fail to tell the truth. But, with some reservations, we have learned to trust our surveillance recordings. Sure, analog videos and audio recordings can be tampered with. But almost universally, analysis of such tampered material exposes the fraud. Not so anymore!

Virtually every camera, video recorder and audio recorder on the planet is now digital. And it is theoretically possible to manipulate or totally forge digital recordings perfectly. Every year now, computer generated images and sounds used in movies are becoming more seamless and convincing. I see no reason at all why we couldn’t make totally realistic-appearing movies that contain not a single human actor or location shot. Just think of it: Jimmy Stewart and John Wayne, in their primes, with their own voices, starring in a brand new western of epic proportions! Awesome! And if Hollywood can do it, you can bet that a lot of other less reputable individuals can do it as well.

So what are we going to do about surveillance recordings (everything from ATMs and convenience store videos to recordings made by the FBI)? We won’t be able to trust that they are real or accurate anymore. Are we going to return to the old days of relying on eye witness testimony and the perceptiveness of juries? Are we going to let even more lying, larcenous and violent offenders off scot free than we are today? I don’t think we as a society will be able to tolerate that. After all, many crimes don’t produce any significant forensic evidence such as finger prints and DNA. Often, video and audio recordings are our only means of identifying the bad guys and what they do.

This means that we are going to have to find ways and means to certify that the digital recordings we make remain unaltered. (Do you see a new service industry in the offing)? The only thing I can think of to solve the problem is a service similar in many ways to the certificate authorities and token providers we use today. Trusted third parties that employ cryptographic techniques and other means to ensure that their equipment and recordings remain pristine.

But that still leaves the problem of the recordings of events that individuals make with their smart phones and camcorders. Can we in all good faith trust that these recordings are any more real than the surveillance recordings we are making today? These, too, are digital recordings and can theoretically be perfectly manipulated. But I can’t see the average Joe going through the hassle and spending the money necessary to certify their private recordings. I can’t see a way out of this part of the problem. Perhaps you can come up with some ideas that would work?

Thanks to John Davis for writing this post.


Seeking Topics for 2014 Webinars

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Got an idea for a webinar you would like to see us tackle in 2014? If so, drop us a line via the comments or give me a shout on Twitter (@lbhuston) and share it with us. We are looking to build a set of monthly webinars and would love to hear what you want to hear more about.

Currently in the idea hopper are:

  • ICS/SCADA/Smart Grid security topics
  • Online crime trends
  • Use cases for HoneyPoint and ProtoPredator
  • Using free or low cost tools to increase your security team’s capability (Thanks @icxc)
  • Persistent Penetration Testing Strategies
  • Scoping and focusing penetration tests for real world business results
  • Ideas for security intelligence operations
  • Many, many more!

Drop me a line with a topic and I’ll enter you into a drawing to win a free copy of HoneyPoint Personal Edition! 

Thanks for reading and for sharing your interests. We want to 2014 to be your most successful information security year to date!

What Do You Want from InfoSec Next Year?

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Given that so many firms will spend the end of the year issuing their opinions and predictions for next year, we thought we’d go against the grain, so to speak, and instead ASK YOU what you want the next year to bring?

What do you hope the information security community accomplishes or changes in a major way next year?

What new services or changes to service offerings would you most like to see?

If you could wake up on the first morning of the new year and have a brand new security product on your door step, what would it do for you? How would you like it to operate? What do you most fantasize about accomplishing?

What projects would you like to see grow in 2014? What terms, techniques or technologies would you like to see left behind in 2013?

Drop us a line via Twitter (@microsolved or @lbhuston) or via our Facebook page (http://facebook.com/microsolved) and let us know what you dream about. We’ll work hard to see if we can make your holiday season wishes come true!