Ample media attention has been focused on security issues such as viruses, phishing attacks and theft of sensitive customer information from large databases. The proliferation of Spyware and Malware (malicious software) has also garnered media attention. Another major, yet seldom discussed threat which goes on largely ignored outside the IT community is the theft and redistribution of email.
To make a product which best addresses the quiet rise in email thuggery, sometimes we have to think like a criminal or mal-doer. How would these digital thugs hunt for Personal Identifying Information (PII), company assets or secret email conversations intended to be read ONLY by the recipient? Consider this article a security instructional on how-to get inside the mindset of those "bad guys."
Your occupation influences the number and type of emails you create and send each day. Most of the email you send contains harmless, benign material that you wouldn’t mind anyone else reading or sharing with others. However, there are portions of your online communiqué each day that probably shouldn’t be forwarded. These messages and attachments contain information that if stolen and/or re-distributed could harm yourself and/or your business. The following are just some ways a thief could intercept your email.
Interception of your wireless signal -
If you use an unencrypted wireless to log-on the internet or your local server, you are running a high risk of having your information stolen. The majority of wireless networks are completely unsecured.
Although it only requires a click to enable wireless security, most users do not encrypt their wireless transmissions. Intercepting these unsecured messages is trivial, making it easy for hackers to gain access to email as well your files stored on your laptop.
Be cautious of local hotspot café. Hotspot hijackers may also utilize wireless networks to insert viruses, spy-ware, or malware on the computers of those who connect unsecured to the hotspot network.
Access to your email account is stolen -
Once and outsider has gained access to your email account, they not only have access to all of your messages (and potentially your on-line passwords) but can also use it to distribute spam, viruses and other harmful information that appears to come from you. Three methods are typically used by outsiders to gain access to your email account:
1.) Theft via interception
2.) Password cracking
3.) Key loggers
Your email password and username can easily be intercepted if you log-in via an unsecured connection. To ensure that you are logging-in securely, look for the https: prefix on the web address. Doing so will greatly reduce the possibilities for password interception.
If you use a simple password consisting of a single word that exists in the dictionary, your email can be easily hijacked. If they want your information bad enough, motivated hackers can either guess it or crack it by using software tool to try every word in the dictionary until access is gained.
The best way to prevent password cracking from happening is to choose a strong password which is a combines different cases, letters, numerals and symbols such as "4JeIw#Tr&2".
Diligent email hackers can also gain access to your email by installing key-logging software on your computer. Key-logging software silently records all of your key strokes and sends them to an interested individual or group. Your usernames and passwords can be parsed and then used to steal your on-line access to your email, credit card, bank information, shopping accounts or any other means of PII (Personal Identifying Information). The best means to thwarting key-login is to use anti-spyware and firewall protection and always keeping them up to date.
Insider leaks and Redistributing Sensitive Content -
Employees are the leading cause of corporate security breaches. According to a 2005 study by the FBI and CSI.(1) Insider abuse accounts for approximately 50% of all security breaches. You may only have to look out across your SMB’s office to see a digital thief among you.
The Ponemon Institute’s "Survey on Data Security Breaches" reveals that 69% of all serious data leaks occur as a result of employee activities, whether intentional or unintentional (2). Of those leaks, 14 % involved intellectual property including software source code. Other findings by the Ponemon institute cross into business-client best practices area and are as follows:
* 39 % involved confidential business information.
* 27 % involved personal information about customers
* 10 % involved personal information about employees
Dissemination of sensitive information can happen all too easily. An accidental click of the "Forward" or "Reply All" button can send proprietary information to unwanted parties.
Interception on Your Company’s Network -
Many companies do not have security protocols in place to prevent the interception of interoffice email. Before email is transferred to the internet it typically travels through the corporate intranet first. If your local network is not secure, it is a trivial matter for an employee with packet sniffer software to intercept all of your intra-network communications.
Company Scanning of Outbound and Inbound Email Content -
According to a 2004 survey by the American Management Association and ePolicy Institute (Workplace E-Mail and Instant Messaging Survey,) 60 % of American Companies use software to monitor the content of inbound and outbound email messages (3).
Email containing everything from inappropriate language, file types and other data are often flagged by a company’s IT Department. While monitoring employee email can reduce a company from liability, this policy can have a different, malevolent result. In a worst case scenario, unscrupulous IT insiders may be tempted to gain access to a company’s email logs, thereby compromising executive and other departmental communication.
Interception at the ISP Server -
While most Internet Service Providers (ISPs) have very sound security policies regarding access to their servers, it is possible for an ISP insider to get a hold of your email and attachments. Your email is stored in a queue for a split second while being transferred from server to sever on its way to your recipient’s inbox. In most cases your emails are deleted as soon as they arrive at the next stop. As in the previously mention "Company Scanning" scenario it is just as plausible that your email could be hijacked by a malicious ISP employee who decides to mirror all of the ISP’s contents on his or her own server. This may be of particular concern when sending email to countries that do not enforce individual privacy protection policies.
Cross-Border Interception -
When emailing internationally there are few legal safeguards to keep your email and attachments from being stolen. In many developing nations your proprietary information could provide a financial windfall for the employees of the local ISP. Your email will likely reach your recipient but it have also have been copied, sold or sent elsewhere. Without added security measures, neither you nor your company will have knowledge of the ill-effect until the damage has been done.
If foreign laws do not allow your recipients to install encryption software, find another way to transfer your important information.
Diligency About Your Online Safety Pays -
Hackers, digital thieves, thugs and general internet mal-doers strive to intercept your email with the goal of financial gain or to cause havoc. Avoiding them will inevitably save your company’s assets. Staying abreast of the newest ways to steal your PII and paying attention to Security and Technology news in general is key to a best practices business policy.
SMBs (Small and Medium Businesses) in the technology sector are seeing security and encryption as the forefront of their IT priorities. In July 2005, Forrester Research released its SMB findings after surveying nearly 800 technology decision-makers on their IT services priorities. Among Forrester’s findings, 71 percent of SMBs will buy security software, similar to the 75% that said they would invest in 2004 (4).
Isn’t SBRM (Small Business Rights Management) Expensive? -
Compliance as it concerns digital data is finally catching up to the widening commercial sector which is highly impacted by the success of small businesses. Small firms dealing with compliance issues can turn to specific SBRM solutions to bridge the gap between staying current with industry regulations and staying in business. ERM (enterprise rights management) software has itself has begun to slim down in price in acknowledgement of the budgetary constraints of small businesses. Current SBRM software can be as vastly robust as common ERM solutions, but as they are specified for the needs of smaller business entities, are more affordable too.
Using encryption will ensure secure transmission when sending email. However, the best way to prevent your email and attachments from being intercepted and redistributed is to use Digital Rights Management (DRM) software, which is often described within the business sector as Enterprise Rights Management (ERM). DRM for the Enterprise and Small Business sectors gives content authors the power to determine how recipients may use their email and documents. For example, senders can prevent unauthorized distribution (no forwarding, printing) and prevent unauthorized editing (no cut, copy, paste) of content, i.e. copy prevention.
When taken into account, the countless hours put into building your company, protecting your company assets from online thugs is a necessary tool to ensure your business survives from this year to the next.
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End Notes:
1.) Gordon, Lawrence A., Martin P. Loeb, William Lucyshyn and Robert Richardson, "CSI/FBI Computer Crime and Security Survey" http://www.cpppe.umd.edu/. July 2005, 13.
2.) Ponemon Institute - as cited by DRM Review), "Leading Cause of Data Security Breaches Are Due to Insiders, Not Outsiders" DRM Review February 10, 2005 http://www.dmreview.com/article_sub.cfm?articleID=1019828 December 1, 2005.
3.) Virginia Business Magazine Online "Email Snooping" May 2005 Issue, Virginia Business Magazine, December 1, 2005, http://www.virginiabusiness.com
4.) Michael Speyer, and Liz Herbert, "Software And Services in the SMB Market - Business Technographics," Forrester Research. http://www.forrester.com
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Ms. Veniegas is an alumni of the University of Washington Marilee joined the Marketing team at Essential Security Software, Inc. in 2005. She also serves as one of the ESS site editors for I Want My ESS! a stolen work and SMB resource site.