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Case Study: Alexis Networks' Insider Risk Analytics

A Deep Dive into Real-World Applications

 

Introduction

In the world of cybersecurity, insider threats represent a uniquely challenging breach vector due to their origin within the organization. Alexis Networks specializes in Insider Risk Analytics (IRA), providing solutions that not only detect but also predict potential insider threats based on sophisticated data analyses. Below, we explore five real-world case studies where Alexis Networks' technology played a crucial role in identifying and mitigating insider risks.

Case Study 1:  The Case of User 10 – A Sign-In Interruption Incident

Background:

User 10 frequently accessed Office 365 Exchange Online for daily tasks. A high Probability of Insider Risk score of 0.988688034 was flagged due to unusual login patterns, notably during a session where a "Keep me signed in" interrupt was recorded.

Risk Identification:

Alexis Networks' IRA detected and flagged this risk based on abnormal interruption patterns during login attempts, which deviated from the user’s established login behavior.

Outcome:

The security team implemented additional multi-factor authentication steps for User 10 and conducted a detailed audit of past activities to ensure no data compromise had occurred. The added security layers and continuous monitoring helped mitigate what could potentially evolve into a data breach.

 

Case Study 2: User 11 – The Disabled Account

 

Background:

User 11's account was disabled due to previous policy violations, yet subsequent attempts to access company data were logged. The IRA system flagged a high risk score of 0.983760589, indicating possible malicious intent to bypass security protocols.

 

Risk Identification:

Attempts to access from a disabled account were highlighted as significant risk factors, compounded by user behavior patterns that did not conform to standard protocols.

 

Outcome:

Immediate isolation of the user’s access rights and a comprehensive review of account activity were undertaken. Further, the company strengthened its policy on handling disabled accounts to preempt any similar incidents in the future.

Case Study 3: Elevated Risk in Routine Activities for User 13

 

Background:

Despite previous incidents, User 13 attempted to access resources using Bing, resulting in further unsuccessful login attempts. An anomaly score of 0.976985419 was observed, linked to the user's disabled account status.

Risk Identification:

Continued access attempts from a non-compliant user highlighted serious risk, with IRA pinpointing exact moments and methods of attempted breaches.

Outcome:

Enhanced surveillance measures and behavioral profiling were applied to User 13's account, aiding in real-time threat detection and response mechanisms.

Case Study 4: User 16’s Compliant but Risky Transactions

 

Background:

User 16 demonstrated compliant yet risky behavior by using a corporate device for potentially insecure operations. This activity generated a risk score of 0.981605211, detected through routine but sensitive access points.

 

Risk Identification:

Though no immediate breaches occurred, the consistent pattern of borderline compliance suggested potential for future insider threats.

 

Outcome:

The user was subjected to targeted cybersecurity training, focusing on secure practices for handling sensitive data and using corporate devices, thus reinforcing the company’s cybersecurity framework.

Case Study 5: High-Probability Risk Due to User Behavior

 

Background:

User 21 showed repeated signs of risking security protocols with a remarkably high insider risk score of 0.990432485. Despite multiple flags, the user continued to exhibit signs of potential malicious activities.

 

Risk Identification:

Analysis revealed that frequent failed login attempts were symptomatic of deeper issues concerning adherence to security measures and possibly indicated malicious intentions.

 

Outcome:

A thorough behavioral audit coupled with direct interventions was implemented. The HR and cybersecurity departments collaborated to address potential grievances and modify the user’s access environments to prevent insider threats.

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Conclusion:

These case studies encapsulate the effectiveness of Alexis Networks' IRA solutions in identifying, predicting, and mitigating insider threats across various scenarios within an organization. Each case underlines the importance of proactive insider risk management practices, emphasizing that understanding user behavior through advanced analytics can significantly empower organizations to fortify their defensive strategies against internal risks.

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About the IRA Case Study

Explanation of IRA insights provided using Alexis Networks' Generative AI.

Solution commercially made available in Q4 2022

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