Cyber Security News

North Korean IT Workers Use Real-Time Deepfakes to Infiltrate Organizations Through Remote Jobs

A division of Palo Alto Networks, have revealed a sophisticated scheme by North Korean IT workers to infiltrate organizations globally using real-time deepfake technology.

This operation, which has raised critical security, legal, and compliance issues, involves creating synthetic identities for multiple job interviews, allowing a single operator to pretend to be different candidates.

Deepfakes
A North Korean operator experiments with face-swapping.

The method, outlined in a detailed report by Unit 42, involves using cheap hardware and readily available tools to generate deepfakes that are convincing enough to bypass many standard hiring processes.

In an experiment, a researcher with limited experience in deepfakes produced a usable synthetic identity in just over an hour on a five-year-old computer equipped with a GTX 3070 GPU.

This demonstrates the alarming accessibility of this undermining technology.

Technical Challenges and Detection Opportunities

While the technology has its limitations, these are rapidly diminishing, making detection increasingly challenging.

Unit 42’s analysis highlighted several technical shortcomings that could be exploited for detection:

  • Temporal Consistency: Rapid head movements cause visible artifacts due to the struggle of the tracking system to maintain accurate facial landmark positioning.
  • Occlusion Handling: Hands passing over the face disrupt the system’s ability to reconstruct the obscured face accurately.
  • Lighting Adaptation: Inconsistent rendering under sudden lighting changes reveals the fake nature of the video.
  • Audio-Visual Synchronization: Slight delays between lip movements and speech provide another clue for detection.

Security experts suggest implementing layered defenses as the best strategy against this emerging threat.

This includes enhanced verification procedures, technical controls, and monitoring throughout the employee lifecycle.

Mitigation Strategies for Organizations

Organizations are advised to update their hiring processes to include several precautions:

  • HR Teams: Recording interviews with consent for forensic analysis, implementing comprehensive identity verification workflows with liveness detection, and training interviewers to recognize deepfake indicators like unnatural eye movements or synchronization issues.
A side-by-side comparison of two deepfake interviewees.
  • Security Teams: Securing the hiring pipeline by monitoring IP addresses, checking phone numbers for VoIP connections, and blocking unauthorized virtual camera applications. Additionally, maintaining information sharing agreements with industry partners and relevant government agencies to stay updated on new threats.

The report also highlighted the importance of organizational policy considerations such as clear protocols for handling suspected synthetic identity cases, security awareness programs, and technical controls to limit access for new hires until additional verification is achieved.

This emerging trend signifies a shift in how North Korean IT workers are attempting to bypass international sanctions through cyber deception, presenting a complex challenge for cybersecurity and talent acquisition professionals alike.

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Aman Mishra

Aman Mishra is a Security and privacy Reporter covering various data breach, cyber crime, malware, & vulnerability.

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