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Wed, Aug 29, 2007 13:40 EDT

Information Security: 7 Data Leaks You Can't Ignore

Topic: Architecture

Current Rating: 5 Comments: 14

Information security controls are an essential part of operations for all financial institutions. Members expect that their local Credit Union is just as secure as the “big bank” located a few hundred feet away in the same parking lot at the mall. The only difference is that the local Credit Union information security budget pales in comparison to the multi million that the big bank will spend.

When a limited budget is combined with a lack of understanding proper security controls, many Credit Unions turn to local consulting companies who often times roll out ineffective “security programs” that can be costly and don’t add much value to increasing their security posture.

Paying a vendor to monitor your IDS and firewall may get you a check mark on this year’s audit (at least for now) but I challenge the fact that it is an effective solution. Every credit union needs an employee on staff that has a deep understanding of information security or at a minimum a vendor or consultant that can steer them in the right direction. If you completely outsource you information security program the balance between operations and security is “broken”.

The key to an effective information security program is to establish clear and open channels of communication between IT and business operations. Operations needs to have confidence that the information security program is not an obstacle but an opportunity to incorporate methodology that will benefit the credit union and its members. Security concepts need to be broken down in terms the business will understand. The main job function of an effective information security manager is to be a sales person for information security. He/she will need to change the way business executives think and make sure security is integrated into their thought process.

I am proud to say that with the support of its executives, TruMark Financial Credit Union has positioned itself as a Credit Union information security leader. My staff and I have spent the last year and a half identifying risk and evaluating products to mitigate those risks. I would like to share our results with you in hopes it will increase the information security posture of the industry to match or exceed that of the “big banks”.

An effective Information security program with mitigating controls does not have to break the bank. Below are 7 common ways data can leak from your organization. I have taken the opportunity to share with you the compensating controls we have implemented which have not only increased out security posture but impressed external auditors and effectively raised the bar across the Credit Union industry.

7 Data Leaks You Can’t Ignore

Leak #1
Sensitive information can leave your organization through USB mass storage devices such as thumb drives, IPODs and Digital cameras or other removable media
Risk Mitigation -> Block all USB mass storage devices
Approximate cost for hardware and 300 licenses -> $50,000
Implement the Trigeo SIM. Their product comes with USB defender which detaches USB drives when mass storage capability is detected. Their product configuration is very granular so permitting USB license keys or hardware tokens is no problem. The employees also receive a pop-up indicating that the use of USB mass storage devices is prohibited. Trigeo can also be easily configured to send an email notification to any email address you like. This is only one of the many features offered with their product.

Leak #2
Sensitive information can leave your organization when copied to a CD or DVD
Risk Mitigation -> disable all burners and remove

You do not have flash or javascript support.
Average (3 votes)
5
 
 
Thu, Aug 30, 2007 5:35 EDT
Posted by: abdhiraj
Rating: 56.6667

Managing Central protection and administration of confidential, enterprise-critical data is bit difficult.

But here are some tips:

1/ Install a solution by which Vital confidential data can be handled, Only authorized users can access, according to fixed rules, Transfer of such data follows clear policies Secure encryption algorithms protect data

2/ Flexible encryption management gives authorized parties permission to define, update or delete encryption keys. Encryption keys can be given to others,
e.g. individual employees and work- groups. Key use is supported by password and public key systems

3/ Encrypted directories are constantly monitored and unencrypted files automatically encrypted

4/ Secure server: file or web server for central storage of sensitive data User management server: Active Directory for user and policy management Management server: for policy settings and log management.....

 
Thu, Aug 30, 2007 7:48 EDT
Posted by: mattroedell
Rating: 90

Encryption is great and I am a firm beliver that all sensitive data should be encrypted while at reast and in motion. Data encryption does not prevent an employee with proper access from removing data with a USB key, sending it as an email attachment or shooting it out to an FTP site. Encryption is a great additional layer of security but mitigating the 7 risks in this article are of the gravest importance. Encryption does not prevent the authorized user from decrypting the file, saving it to their desktop (or whereever) and transporting the data.

 
Thu, Aug 30, 2007 9:05 EDT
Posted by: Mark Cummuta
Rating: 90

Matt,

Great article! Lots of ideas, specific methods and products, even cost estimates.  Nicely done! 

Mark Cummuta

 
Thu, Aug 30, 2007 9:12 EDT
Posted by: mattroedell
Rating: 90

Mark,

Thanks for the positive feedback!
I think my next article will focus a "fool proof" methodology to get funding for information security products.

-Matt

 
Tue, Sep 4, 2007 14:24 EDT
Anonymous user
Posted by: Anonymous
Rating: 40

There are several vulnerabilies with Layer 2 security; ARP Poisoning, MAC Flooding, MAC Cloning, port stealing, DoS, and ARP spoofing.

Avoid a false sense of security by mitigating these threats!

Check out "Securing Layer 2 in Local Area Networks" and "LAYER 2 SECURITY INTER-LAYERING IN NETWORKS" at the following URLs for more info...

http://users.ece.gatech.edu/~owen/Research/Conference%20Publications/altunbasak_ICN2005.pdf

http://etd.gatech.edu/theses/available/etd-11172006-130414/unrestricted/altunbasak_hayriye_c_200612_phd.pdf

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