October 8 Blog

The Rise of Insider Threats: How Organisations Can Address This Growing Challenge

Today cybersecurity threats are no longer just external, insider threats are increasingly becoming a critical concern for organisations. Whether driven by malicious intent or simple negligence, insider threats can cause significant financial, reputational, and operational damage. With supply chains, remote work, and digital collaboration expanding, organisations must now put stronger focus on how to mitigate risks from within their own ranks.
According to research from Gurucul — which surveyed more than 400 IT and cybersecurity professionals — organisations are seeing a rising tide when it comes to insider threats. In 2023, 60% of organisations reported insider attacks, but in 2024 this number jumped to 83%. And in a dramatic shift, the number of organisations experiencing six to 10 attacks in the year doubled from 13% to 25%.
Understanding Insider ThreatsAn insider threat comes from individuals within the organisation—employees, contractors, or trusted partners—who have access to sensitive data or systems and abuse that access, either intentionally or unintentionally. These threats can take several forms, such as:

• Malicious insiders: These are individuals who deliberately leak or misuse information for personal or financial gain.
• Negligent insiders: Employees who unknowingly compromise security by mishandling sensitive data, using weak passwords, or falling prey to phishing attacks.
• Third-party insiders: External partners, vendors, or supply chain members who have access to an organisation’s systems and accidentally or deliberately cause harm.

While external cyberattacks often grab headlines, insider threats are harder to detect, more personal, and sometimes more damaging because the individuals involved are already trusted with sensitive information.
Why Insider Threats are on the RiseSeveral factors have contributed to the rise of insider threats:

1. Remote Work and Hybrid Environments: With the shift to remote and hybrid work models, employees are increasingly working outside the secure perimeter of the office. This change has introduced vulnerabilities such as unsecured Wi-Fi networks, shared devices, and a reduced ability to monitor activity.
2. Complex Supply Chains: As organisations become more interconnected with suppliers, vendors, and third-party contractors, their exposure to insider threats increases. The more external entities have access to your network, the greater the risk that something could go wrong.
3. Economic Pressures: Layoffs, job insecurity, and financial stress can motivate employees to act against their employer. Some disgruntled employees may choose to sell proprietary information or compromise systems out of revenge or for profit.
4. Access to Advanced Technology: Employees with access to advanced tools and systems may unintentionally misuse them, leading to accidental data breaches or system compromises. Furthermore, as artificial intelligence (AI) and automation tools evolve, they might also introduce new ways for insiders to exploit vulnerabilities.
5. Sophisticated Phishing Attacks: Attackers have also become more adept at targeting insiders through highly convincing phishing schemes, tricking them into unwittingly sharing credentials or other critical data.

How Organisations Can Address Insider ThreatsAddressing insider threats requires a multi-layered approach that combines technology, culture, and clear policies. Below are several strategies organisations can adopt:
1.Conduct Regular Insider Threat Risk Assessments
Start by conducting a comprehensive risk assessment to identify vulnerabilities related to insider threats. This can be done as part of a broader cybersecurity audit, where you examine access controls, user behaviour, and high-risk employees or third-party partners. Consider an **independent, human-centric audit**, which not only evaluates your technical safeguards but also assesses human behaviour, motivations, and organisational culture to gain deeper insights into potential threats.
2.Implement Strong Access Controls and Monitoring
To prevent misuse of sensitive data, enforce the principle of **least privilege**—only granting employees the minimum level of access necessary to perform their job functions. Regularly review and update access controls, especially when employees change roles or leave the company.
Use monitoring tools to track employee activity across systems, focusing on unusual behaviours like downloading large amounts of data, accessing systems after hours, or logging in from unexpected locations. Advanced behavioural analytics can identify anomalies that may indicate insider threats, without excessively intruding on employees' privacy.
3.Promote a Culture of Security Awareness
A strong security culture is one of the most effective ways to combat insider threats. Training employees on security best practices, such as how to spot phishing emails, securely handle sensitive data, and recognize suspicious behaviour, is essential.
Fostering a culture where employees feel valued and engaged reduces the likelihood of malicious insider threats. When staff feel secure in their roles and see that the organisation prioritizes their well-being, they are less likely to engage in retaliatory actions. Promoting job security, clear communication, and support can go a long way in reducing insider risks.

1. Deploy User-Friendly Technology Solutions

Ensuring that security tools are not overly complex or burdensome for employees is key to minimizing accidental insider threats. Employees frustrated with difficult or slow-to-use systems may inadvertently bypass security protocols, introducing risks.
User-friendly technology that supports employees, rather than hinders them, is critical. Implement cybersecurity solutions that are both AI-enhanced and human-centric, ensuring that they adapt to user behaviour while maintaining high security standards. For example, intelligent password management solutions, AI-driven anomaly detection, and automated compliance tools can help reduce risks without overwhelming employees with too many manual processes.
5.Monitor and Vet Third-Party Partners
Supply chains and third-party vendors are a common source of insider threats. Regularly vet third-party partners to ensure they meet your organisation’s security standards. Implement stringent access controls for external users and require multi-factor authentication (MFA) for any third-party access.
It is also important to have clear contracts that hold third-party vendors accountable for maintaining the security of your systems and data.
6.Establish Clear Incident Response Plans
Despite your best efforts, insider threats may still occur. Having a clear incident response plan in place is crucial. This plan should outline how to detect, investigate, and respond to insider threats efficiently. Include steps for containing the breach, preserving evidence, and reporting the incident to the appropriate authorities. Regularly update and test the plan to ensure its effectiveness.
Insider threats are an evolving and complex cybersecurity challenge for organisations of all sizes. By understanding the different types of insider threats and addressing both the technological and human elements, organisations can protect themselves from these risks. Through regular audits, strong access controls, security awareness training, and the implementation of human-centric, user-friendly technology, you can significantly reduce the likelihood and impact of insider threats on your organisation.
Proactively addressing insider threats not only protects your organisation’s assets but also strengthens trust within the workforce and supply chain—creating a more resilient, secure business ecosystem.