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A subject may be required to undergo a criminal background check prior to joining the organization, particularly when the role involves access to sensitive systems, data, or physical spaces. This preventative measure is designed to identify any prior criminal conduct that may present a risk to the organization, indicate a potential for malicious behavior, or conflict with legal, regulatory, or internal policy requirements.

Criminal background checks help assess whether a subject's history includes offenses related to fraud, theft, cybercrime, or breaches of trust—each of which may elevate the insider threat risk. Roles with elevated privileges, access to customer data, financial systems, or classified information are often subject to stricter screening protocols to ensure individuals do not pose undue risk to organizational security or compliance obligations.

This control is especially critical in regulated industries or environments handling national security assets, intellectual property, or financial infrastructure. In such settings, background checks may be embedded within broader personnel vetting procedures, such as security clearances or workforce integrity programs.

Where appropriate, periodic re-screening or risk-based follow-up checks—triggered by role changes or concerning behavior—can strengthen an organization’s ability to detect emerging threats over time. When implemented consistently, background checks can serve as both a deterrent and a proactive defense against insider threat activity.

An individual’s prior employment history may be verified through formal reference checks conducted prior to their onboarding with the organization. This process aims to validate key aspects of the subject’s professional background, including dates of employment, job titles, responsibilities, and performance, as well as behavioral or conduct-related concerns.

Reference checks serve as a critical layer in assessing an individual’s suitability for a given role, particularly where access to sensitive systems, data, or personnel is involved. When conducted thoroughly, this process can help identify discrepancies in a candidate’s reported history, uncover patterns of misconduct, or reveal concerns related to trustworthiness, reliability, or alignment with organizational values.

Employment reference checks are particularly relevant to insider threat prevention when evaluating candidates for positions involving privileged access, managerial authority, or handling of confidential information. These checks may also uncover warning signs such as unexplained departures, disciplinary actions, or documented integrity issues that elevate the risk profile of the individual.

Organizations may perform this function internally or engage trusted third-party screening providers who specialize in pre-employment due diligence. When combined with other vetting measures—such as criminal background checks and social media screening—reference checks contribute to a layered approach to workforce risk management and help mitigate the likelihood of malicious insiders gaining access through misrepresentation or concealment.

Mandatory security awareness training for employees can help them to recognize a range of cyber attacks that they can play a part in preventing or detecting. This can include topics such as phishing, social engineering, and data classification, amongst others.

Background checks should be conducted to ensure whether the information provided by the candidate during the interview process is truthful. This could include employment and educational reference checks, and a criminal background check. Background checks can highlight specific risks, such as a potential for extortion.

A subject’s publicly accessible online presence may be examined prior to, or during, their association with the organization through the application of Open Source Intelligence (OSINT) techniques. This form of screening involves the systematic analysis of publicly available digital content—such as social media profiles, posts, comments, blogs, forums, and shared media—to assess potential risks associated with an individual.

Social media screening is typically conducted to identify indicators of reputational risk, conflicting motives, or behavioral patterns that may suggest the potential for insider threat activity. Content of concern may include public expressions of hostility toward the organization, affiliation with extremist or high-risk groups, or engagement with topics unrelated to the subject's role that could indicate potential misuse of access.

Trusted service providers specializing in OSINT and digital risk intelligence may be engaged to perform this screening on behalf of the organization. These providers use automated tools and analyst-driven review processes to ensure consistent, legally compliant, and policy-aligned assessments of online behavior.

When implemented as part of pre-employment screening or ongoing risk monitoring, social media screening can serve as a proactive measure to detect insider threat indicators early. To be effective and ethical, such programs must follow applicable privacy laws, data protection regulations, and internal governance standards. When responsibly executed, social media screening enhances the organization's ability to identify individuals who may present an elevated risk to information security, personnel safety, or corporate reputation.

An agent capable of User Activity Monitoring (UAM) is a software agent installed on organization endpoints (such as laptops); typically, User Activity Monitoring agents are only deployed on endpoints where a human user Is expected to conduct the activity.

The User Activity Monitoring agent will typically record Operating System, application, and network activity occurring on an endpoint, with a focus on activity that is or can be conducted by a human user. The purpose of this monitoring is to identify undesirable and/or malicious activity being conducted by a human user (in this context, an Insider Threat).

Typical User Activity Monitoring platforms operate in an agent/server model where activity logs are sent to a server for automatic correlation against a rule set. This rule set is used to surface activity that may represent Insider Threat related activity such as capturing screenshots, copying data, compressing files or installing risky software.

Other platforms providing related functionality are frequently referred to as User Behaviour Analytics (UBA) platforms.

An agent capable of User Behaviour Analytics (UBA) is a software agent installed on organizational endpoints (such as laptops). Typically, User Activity Monitoring agents are only deployed on endpoints where a human user is expected to conduct the activity.

The User Behaviour Analytics agent will typically record Operating System, application, and network activity occurring on an endpoint, focusing on activity that is or can be conducted by a human user. Typically, User Behaviour Analytics platforms operate in an agent/server model where activity logs are sent to a server for automatic analysis. In the case of User Behaviour Analytics, this analysis will typically be conducted against a baseline that has previously been established.

A User Behaviour Analytic platform will typically conduct a period of ‘baselining’ when the platform is first installed. This baselining period establishes the normal behavior parameters for an organization’s users, which are used to train a Machine Learning (ML) model. This ML model can then be later used to automatically identify activity that is predicted to be an anomaly, which is hoped to surface user behavior that is undesirable, risky, or malicious.

Other platforms providing related functionality are frequently referred to as User Activity Monitoring (UAM) platforms.

Implement User Behavior Analytics (UBA) tools to continuously monitor and analyze user (human) activities, detecting anomalies that may signal security risks. UBA can track and flag unusual behavior, such as excessive data downloads, accessing a higher-than-usual number of resources, or large-scale transfers inconsistent with a user’s typical patterns. UBA can also provide real-time alerts when users engage in behavior that deviates from established baselines, such as accessing sensitive data during off-hours or from unfamiliar locations. By identifying such anomalies, UBA enhances the detection of insider events.