A recent insider threat intelligence report from Dtex has revealed the vast majority of firms have employees bypassing security controls put in place to limit Internet activity. Those controls may simply be policies that prohibit employees from accessing certain websites during working hours, or in some cases, Internet filtering controls such as web filtering solutions.
Dtex discovered during its risk assessments on organizations that 95% of companies had employees that were using virtual private networks (VPNs) to access the Internet anonymously, with many installing the TOR browser or researching ways to bypass security controls online. The researchers discovered that in some cases, employees were going as far as installing vulnerability testing tools to bypass security controls.
Why Are Employees Bypassing Security Controls?
Employees bypassing security controls is a major problem, but why is it happening?
The report indicates 60% of attacks involve insiders, with 22% of those attacks malicious in nature. During the first week of employment and the final week before an employee leaves, there is the greatest chance of data theft. 56% of organizations said they had discovered potential data theft during those two weeks. During these times there is the greatest risk of employees attempting to bypass security controls for malicious reasons.
In many cases, VPNs and anonymizers are used to allow employees to access websites without being tracked. Many companies have policies in place that prohibit employees from accessing pornography in the workplace. Similar policies may cover gaming and gambling websites and other categories of website that serve no work purpose. Some employees choose to ignore those rules and use anonymizers to prevent their organization from having any visibility into their online activities.
The report indicates 59% or organizations had discovered employees were accessing pornographic websites at work. There are many reasons why companies prohibit the accessing of pornography at work. It is a drain of productivity, it can lead to the development of a hostile working environment, and from a security standpoint, it is a high-risk activity. Pornographic websites are often targeted by cybercriminals and used to host malware. Visiting those sites increases the risk of silent malware downloads. 43% of companies said they had found out some employees had been using gambling sites at work, another high-risk category of website and a major drain of productivity.
While employees are provided with email accounts, many are choosing to access web-based accounts such as Gmail. Dtex found that 87% of employees were using web-based email programs on work computers. Not only does this present a security risk by increasing the probability of malware being downloaded, it makes it harder for employers to identify data theft. Dtex says “By completely removing data and activity from the control of corporate security teams, insiders are giving attackers direct access to corporate assets.”
Lack of Control and Visibility
Many companies are unaware that they have employees bypassing security controls because they lack visibility into what is happening on end points. Shadow IT can be installed without the organization’s knowledge, including VPN’s and hacking tools, but what can be done to stop employees bypassing security controls?
Security software can be installed to allow organizations to closely monitor the types of activities that are taking place on work computers. This can allow action to be taken to reduce insider threats. Organizations should also block the use of VPN’s and anonymizers to ensure they have more visibility into employee’s online activities.
One of the easiest ways to block the use of VPNs and anonymizers is to use a web filtering solution. Web filters are increasingly used as a way of preventing productivity losses during the working day. Web filtering solutions can be configured to block specific sites or categories of website.
A web filter, such as WebTitan, can be configured to block access to anonymizer websites, along with other websites that are prohibited under organization’s acceptable use policies.
Some employees find the controls overly restrictive and search for ways to bypass those controls. Organizations should carefully consider what websites and types of websites are blocked. Excessively restrictive controls over personal Internet access can prompt employees to try to bypass security controls. Allowing some personal use may be preferable.
One solution, possible with WebTitan, is to ease restrictions on Internet access by using time controls. To prevent falls in productivity, web filters can be applied during working hours, yet relaxed at other times such as lunch breaks. By allowing some personal Internet use, there is less incentive for employees to attempt to bypass security controls.
WebTitan also produces access logs to allow organizations to carefully monitor online user activity and take action against the individuals discovered to be violating company policies. Automatic reports can also be generated to allow organizations to take more timely action.
Monitoring employee Internet access and installing solutions to provide visibility into end point activity allows organizations to reduce the risk of insider threats and stop employees from engaging in risky behavior.