Protecting your company from employee workarounds
August 26th, 2010 by To the PointWe all know that the internet poses many threats to the safety and security of our companies. However the old solution of simply blocking certain websites is no longer a viable option. With the increased necessity of social media sites to be used for business purposes, many employees need access to once restricted areas in order to do their jobs properly. Further, there are several ‘workarounds’ available for the more technically savvy members of your staff assisting them in gaining access to once restricted domains of the internet – putting your company at risk.
So then what is the solution?
The first thing is to make sure your internet usage policy is current, up-to-date, and that it works with and not against employee effectiveness while also protecting your organization from harm.
Secondly, be sure you are as up-to-date as possible on the workarounds being used to gain access to restricted sites. While some sites like LinkedIn and Facebook are more acceptable within our offices than they used to be, others like gambling sites should still be blocked to protect you from malware. We recently read a great article by Joan Goodchild, Senior Editor for CSO Online, discussing the most popular workarounds and ways to combat them and have provided a summary for you here.
Workaround 1: Typing in an IP address instead of a domain name
- Using the IP address of a blocked site will sometimes allow users to bypass security that looks for a domain name only, and there are many websites where the IP address can be accessed by employees.
Workaround 2: Finding a cashed version
- Search providers, like Google, cache websites on a regular basis – which basically means that they save a version of the site on their own servers. One can navigate to a cached site in Google by clicking on the ‘cached’ button after a search result.
Solution: Ignore the IP/URL blocking altogether and block sites based on the content line instead.
Workaround 3: Hiding behind encryption
- Entering HTTPS in front of the web address will often provide a stripped down version of the restricted site. There is also SSH, encrypted SOCKS, and other different alternative channels that masquerade as web traffic on less than intelligent network devices.
Solution: You may consider implementing a web proxy and gateway that allow content to be analyzed by creating a pit stop along the way.
Workaround 4: Using proxy servers and other privacy-friendly tools
- Some employees set up their browser so that their web queries go through an encrypted tunnel to an external server which may give them unrestricted access to sites. An example of this is GhostFox, a browser extension of Firefox.
Solution: If the proxy server is unencrypted, you can inspect the traffic and block either by blocking proxy connections at your firewall and/or by looking at web page content. If the traffic is encrypted then blocking becomes difficult, if not impossible.
Workaround 5: Using smartphones
- While using a personal smartphone isn’t necessarily tampering with a company computer, it can still be a violation of company policy if it is being used to access blocked sites during paid work hours.
Solution: Options for security in this instance are limited unless the device is provided by the company in which case it can be restricted through policies and proxy servers. However if it is a personal phone, the only answer is monitoring by management and strict no-usage policies.
Ultimately one of your best tools can likely be found in good old fashioned communication. Consistently letting employees know why policies are in place, and how they protect the organization can increase their respect for the ‘rules’. Further, an open door policy with your management that allows employees to explain why and how a restricted site may increase their customer service or productivity is a must. It is important to make sure we are not only protecting IT resources – but also encouraging our staff to find ways to become more efficient.
To read the entire article, click here.
