Industry News
5 Best Practices to Prevent Insider Threats in 2019

Data breaches caused by insiders cost enterprises millions of dollars. According to the Ponemon Institute, every year, companies lose up to $8.7 million due to insider threats. To ensure an appropriate level of enterprise data protection, security officers continuously look for ways to improve their current insider threat management solution. With the following insider threat management best practices, youâll be able to protect your sensitive business information and keep malicious insiders at bay.
1. Consider access controls
Itâs essential to keep your critical assets inaccessible for malicious insiders. First and foremost, deploy multi-factor authentication (MFA) for the most valuable systems, applications, and services. Your goal is to make sure that any malicious insider wonât be able to borrow a password from their colleagues and get a hold of the data they arenât supposed to have access to. Therefore, you need to look for an insider threat management solution with a built-in MFA functionality.
By implementing MFA, you can make sure that the person attempting to enter the protected perimeter are who they claim to be. At the same time, the use of MFA makes it way harder for malicious insiders to access your companyâs sensitive information.
Itâs also important to have a good password management policy in place. The most basic recommendations include forbidding the use of default and simple passwords and changing passwords upon certain events (say, employee resignation) or after some periods of time (say, every month or every quarter).
2. Limit access whenever possible
Once you managed to make sure that only the right people can get access to your network and critical assets within it, itâs time to think about the access permissions each of your companyâs employees has. Itâs best to take some technical measures to mitigate insider threats and deploy the so-called least privilege principle when employees only have the exact access level they need to do their job.
But today, more and more companies go even further and deploy a zero trust security model. In a zero trust network, thereâs no general protected perimeter that distinguishes trusted insiders from untrusted outsiders. Instead, each critical asset or system is fully protected from both insiders and outsiders, thus mitigating internal and external threats to cyber security.
Such an approach works best for the companies that cooperate actively with third-party vendors and subcontractors. Itâs also a great solution for the enterprises with a bring your own device (BYOD) policy in place, allowing their employees to use personal devices for work purposes.
3. Monitor employee activity
User activity monitoring is the basis of many insider threat protection techniques. You need to be able to see whatâs going on within your network, in real-time at best. When choosing among the solutions to protect against insider threats in cybersecurity, pick the one that allows to see a particular user session and terminate it if necessary.
Many companies also look towards User and entity behavior analytics (UEBA) as the key to effective threat monitoring and protection against insider threats. Advances in machine learning technologies allow building user profiles that include normal baseline behavior patterns for particular users or roles. Registering activities that deviate from these patterns may help detect malicious insiders and mitigate possible threats at an early stage.
4. Analyze logs and respond to security incidents
Continuous user activity monitoring is meant to give you full visibility across the enterprise network and provide you with detailed data for further analysis. Depending on the user monitoring solution, user activity logs may contain different types of information:
Names of files and applications opened by the user:
- URLs to the visited websites;
- Logged keystrokes;
- Recorded sessions, and more.
The proactive incident response also plays a significant part in building an effective insider threat cyber security program. Thereâs no point in detecting a malicious action if youâre unable to respond to it properly and, therefore, prevent a data breach from happening.
Look for an insider threat prevention solution that allows you both receiving real-time notifications about the detected security incidents and automating responses to the most common types of incidents. For instance, if the system registers, say, three unsuccessful login attempts, the account a user tried to access will be blocked.
Finally, if you want to be able to analyze all of the logged information on a deeper level, make sure that your insider threat prevention solution supports forensic data export.
5. Pay special attention to third-parties
Remote access control and protection is an essential part of the modern insider threat management program. Today, more and more organizations hire remote employees and grant access to critical corporate resources to third-party vendors and contractors. But, as reported in a 2018 study by the Ponemon Institute, third-party vendors were the cause of nearly 60 percent data breaches.
If granting third-party vendors access to business-critical data, systems, and application is a common practice for your organization, make sure you have an appropriate third-party management solution in place. Leverage all of the above-mentioned tools and practices to protect your corporate data from unauthorized access and use.
If your third-party subcontractors are using a shared account for accessing your corporate network or business applications, itâs preferable to add secondary authorization as an additional protection layer. This way, youâll be able to clearly associate each session initiated under the shared account with a particular user.
And, finally, make sure that your third-parties are well aware of your organizationâs cybersecurity policy and know what cybersecurity rules they must follow.
Conclusion
Insider threats have one of the biggest impacts on enterprise cybersecurity. In order to mitigate the risks related to insider threats, organizations should deploy complex solutions that include monitoring and audit of user activity, granular access and privilege management, and effective incident response.
This article is a contribution from Marcell Gogan.  Marcell is a specialist within digital security solutions, business design and development, virtualization and cloud computing, R&D projects, establishment and management of software research direction â working with Ekran System. He also loves writing about data management and cybersecurity.Â
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