Archive for the ‘DLP’ Category

The Evolution of Classification

Wednesday, October 23rd, 2013

Last week, the lead whitepaper in TechTarget’s Daily Top 5 was titled, How to Tackle Information Classification – published by the Jericho Forum. Naturally, I was interested to see what it had to say and eagerly downloaded it only to find that it was originally published in January 2009 – almost 5 years ago. Despite its age, the whitepaper is a solid introduction to information classification, the benefits and the challenges. In particular, it provides confirmation that classification is the lynchpin to successful security in a “de-perimeterised environment.” But there were a few areas where it was a bit, shall we say, “stale.” The Jericho Forum whitepaper identified some problems which, in the years since it was published, have been successfully addressed.

Let’s look at the three main problems areas that the Jericho Forum whitepaper identified: (more…)

Cloud Data Security…Are You Worried about the Cost?

Friday, February 24th, 2012

According to a survey by research group the Ponemon Institute, recently sited in an InformationWeek article, 91% of federal IT workers are either somewhat or very familiar with the Office of Management and Budget’s Cloud First initiative, however 69% believe that the initiative’s requirement to move three services to the cloud over 18 months is too fast. In fact, 71% of respondents said that pressure to move to the cloud creates security risks for their organizations.

The government’s move to cloud computing throughout the Obama administration is moving forward. Numerous efforts, including Cloud First and the FedRAMP security authorization initiative, have been set up to help accelerate that move. And at TITUS we are working with various government agencies to better understand their cloud data security requirements.

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Why Isn’t My DLP Investment Paying Off?

Wednesday, January 4th, 2012

It’s a common scenario: a large organization invests millions of dollars in a DLP solution, only to leave it in “watch mode” because the rate of false positives is too high to enable full blocking. The result is a DLP investment that becomes a white elephant: a promising technology that does not pay off in actually preventing data loss.

The problem often begins with an over-reliance on automated scanning to prevent data loss. The DLP system is expected to automatically identify all sensitive content, which requires IT administrators to translate business processes and policies into automated rules for every data loss scenario. This is an impossible task, which usually results in overly restrictive rules that block non-sensitive data (false positives) or overly permissive rules that mistakenly release sensitive data (false negatives).

The impact of false positives can be just as detrimental to the business as the data loss caused by false negatives. False positives disrupt business agility and productivity, and can impact collaboration, innovation, and business growth. As well, false positives can actually lead to increased data loss, with users looking for alternative, less secure methods to get around restrictions and carry out their business tasks.

The best way to address this problem is for organizations to identify their information appropriately. The sensitivity of each piece of information must be identified, or ‘classified’. Information classification is crucial for proper handling, and for the ultimate security of an enterprise’s information. Classification provides context to unstructured data such as email and business documents, making it possible for DLP solutions to know how to protect your organization’s sensitive information. (more…)

Top Data Security Blog Posts for 2011: Data Classification, Mobile Security, Data Security and Compliance, Data Loss Prevention, and Cloud Data Security

Wednesday, December 28th, 2011

As 2011 draws to a close, I thought it would be interesting to provide a list of the most popular data security articles on this blog. Here are the topics and articles that were most popular with our readers:

1) Data Classification

More and more commercial organizations have started to see data classification as the foundation of their information protection strategy. We wrote several articles about this trend, including an article that described how to implement a data classification policy in 5 simple steps, and an article that recommended best practices for defining a data classification scheme. Readers were also interested in how to use classification software to bulk classify, mark, and label large numbers of files.

2) Mobile Security

Mobile security has become a hot topic, especially with the trend toward consumerization of mobile devices. (more…)

Data Loss and Other Risks – Employees Sending Email to Their Home Computer for Business Purposes

Thursday, September 1st, 2011

It can be very tempting for employees to use their personal email accounts to do corporate business. The typical scenario is that they didn’t quite get all their work done on a document in the office, so they send that document to their personal email account, where they can pick it up at home and continue working on it.

In this article, we’ll have a look at why employers should have a policy against employees using this practice. Having a clear policy might save some embarrassment, financial penalties or even legal difficulties,  and might help people understand why it’s important.

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Oh no! – Email Auto-Complete – Helping Users Prevent Data Leakage to Unintended Email Recipients

Thursday, August 11th, 2011

Most of us have inadvertently sent email to an unintended recipient due to the fateful “Reply All” button, or as a result of a hastily typed recipient name that gets “Auto-Completed” with the email address of somebody who has a similar name to the intended recipient. The result can be not only embarrassment, but actual data leakage that should be treated as a security incident or breach.

This blog discusses how common mistakes including inserting the wrong email address and sending emails that contain sensitive and restricted data to the wrong recipient(s),can impact an organization, and how the TITUS Aware for Microsoft Outlook product can  prevent these kinds of incidents.

 

When the convenience of auto-completed Email recipients turns into a data breach

The results were disastrous in 2010 for the Gwent Police Department in the UK, when an unencrypted spreadsheet containing the results of criminal record checks was accidentally sent by a police department employee to a newspaper, instead of an internal departmental recipient. The culprit was the “Auto-Complete” feature in their email program that filled in, or suggested, the newspaper’s email address as a CC recipient, rather than the intended internal recipient.

The file contained Personally Identifiable Information (PII) of 10,000 citizens who had applied for jobs that required criminal record checks. For a brief summary of the story, click HERE.  If only the unfortunate police department employee had been warned that they were about to make this mistake, the incident would certainly have been avoided by alerting the user before they send an email to correct the recipient list.

The ultimate unintended Reply-All ruins a legal case

Imagine being an attorney working on a legal case when you respond to a colleague’s email with the Reply-All button, and realize that the recipient list included a member of the opposing counsel. This could be the ultimate breach of attorney-client privilege. In such a case (click HERE), the judge, when asked to rule that the email’s content was inadmissible, noted that this was not the first incident of this type for the attorney in question. Clearly, a firm is expected to be diligent with its email communications.

How TITUS Aware for Microsoft Outlook can help solve inadvertent email misdirection

TITUS Aware for Microsoft Outlook is a powerful email tool for preventing data leakage. Policies can be defined to warn an users or to prevent email from being sent when certain rules are violated.

For example, in the case of the Outlook Auto-Complete problem, any email recipient that is not within predefined SMTP “Safe Domains” (e.g. the employer’s corporate domain) can trigger a pop-up warning to the user to inform them of the potential data loss and asking how they wish to proceed. Giving users a second chance to review the recipient list, to make sure that there are no unintended external recipients,  can prevent massive breaches such as occurred in the Gwent Police Department story above.

The image below shows a typical warning, to a user, that a recipient selected via Auto-Complete is actually an external Hotmail user.

Policy Warnings Dialog

Figure 1 – Safe Domains in TITUS Aware for Microsoft Outlook

The risk of accidentally using the Reply All button can also be mitigated through the use of the “Maximum Recipients” feature in TITUS Aware for Microsoft Outlook. When a message has more than a certain number of recipients, a rule can be triggered that presents a warning dialog to the user. This gives users a warning that they might be sending the email to more recipients than they had planned. This can be enough of a reminder that the user will correct the recipient list.

The administrative setting shown in the image below allows for a maximum number of message recipients. Whenever the number of recipients exceeds this value, the user will see the warning dialog.

Maximum Recipients Dialog

Figure 2 – Maximum Recipients Setting in TITUS Aware for Microsoft Outlook

These are just a couple of examples of how TITUS Aware for Microsoft Outlook can guide users to making good security decisions when working in a high-pressure environment. Overall, the aim is to create a decision point for the user, encouraging them to review what they plan to send and to whom. This increases users’ responsibility and helps to correct any digressions from the company’s security policy before an incident happens.

How soon do you think the next preventable email incident will occur in your organization? Having an automatic reminder can really reduce the chances of it actually happening. In addition this will empower the user and enable IT to focus on more strategic tasks

If you’d like more information on how the TITUS products can help implement recipient list validation to improve DLP, please use the coordinates on our Contact Us page to let us know.

Redaction for Microsoft Outlook email – How it Can Support Data Loss Prevention

Monday, July 25th, 2011

Since there are a number of ways to implement Data Loss Prevention (DLP) within an enterprise, it is important to understand the value of different approaches. One approach to DLP is called “Redaction”, which involves blacking out the characters in a message or document, so that future consumers of the document can’t see sensitive portions of the document. The image below shows how a redacted message might look. Redaction has been mostly used in highly sensitive government or military environments for documents, but redaction can also be used in commercial organizations where the loss of sensitive information via email is a concern.

Clearly, in order to effectively redact content, some kind of rules must be applied to determine which portions should be blacked out. Once the sensitive portions have been identified, a number of different actions are usually taken to ensure that the sensitive information is not released. This article focuses on why redaction is an important option to have in an email system, and how it can be automated to help users protect sensitive information.

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Preventing a $25M Email Leak – UBS and RBS Examples

Friday, May 20th, 2011

With all the buzz around the Linked In IPO this week, financial services agencies are finding that data loss prevention is taking on a new urgency.  Financial data leaks are getting increasing press coverage and costing institutions significantly with fines, lost business, damage to reputation and regulatory sanctions.  The LinkedIn IPOs were underwritten by Morgan Stanley, JPMorgan Chase  and Bank of America and by all accounts was a huge success and went off without a hitch.
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Wikileaks Guantanamo Files – How Can Security on Classified Systems be Improved?

Wednesday, May 4th, 2011

Last week saw another round of Wikileaks releases. This time secret US files on 764 detainees held at Guantánamo Bay, Cuba over the past decade have been published by the WikiLeaks website. These memoranda, which contain JTF-GTMO’s recommendations about whether the prisoners in question should continue to be held, or should be released (transferred to their home governments, or to other governments) contain a wealth of important and previously undisclosed information, including risk and health assessments.

The documents are available from WikiLeaks as PDF documents, but could well have been originally written as Microsoft Word documents. The documents have been properly classified. For example, here is a typical classification from one of the documents – S E C R E T / / NOFORN / / 20330428, which means the document is classified as Secret and should not be released to any foreign governments.
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