Harver offers Fraud Detection and Proctoring as an add-on service to help customers identify suspicious activity and protect the integrity of their hiring process.
The feature consists of multiple detection pillars and exposes valuable session-level data that customers can use as part of their own fraud-prevention workflows.
Application Session Log
The Application Session Log is a standalone feature that surfaces key parameters about each candidate session. Customers can manually review these parameters or cross-reference them with internal fraud or security systems.
The following data points are exposed:
- IP address
Allows cross-referencing with internal systems to identify suspicious or blocked IP ranges. - Country
Helps verify whether a candidate is applying from an approved or expected country. - Device information
Often requested for general security, troubleshooting, or fraud-related use cases. - Anonymizer Types
Shows whether the candidate is using any anonymization services such as VPNs, proxies, or privacy tools.
This information helps customers perform their own investigations and strengthen their fraud-prevention workflows.
Why does it say "no data available"?
If the session logging was enabled after a candidate applied, for older candidates the data is not available and it shows this message.
Retry Detection
Harver uses advanced Machine Learning models to analyze all candidates within a specific vacancy. The system estimates the probability that a candidate is submitting a fraudulent or repeated application.
If the probability crosses a defined threshold, Harver displays a warning inside the Fraud widget.
The machine learning model behind this feature is complex and results are not instant. Please allow some time for our prediction to be displayed.
The Fraud widget provides:
- A warning banner when suspicious activity is detected.
- Links to other related applications suspected to belong to the same candidate.
- Cross-references across all applications for that vacancy, regardless of:
- Source
- Locations
- Entry points
Recruiter Access Notes
Recruiter permissions depend on vacancy and location. If a recruiter cannot open one of the links to related applications, they should verify their permissions or contact an internal user who has full vacancy access.
If no suspicious behavior is detected, the widget displays a green checkmark indicating the candidate is not flagged by the model.
Out-of-Range Detection
This detection identifies:
- Candidates applying from unapproved or unexpected locations
- Candidates using VPNs or anonymizers
How it works:
- Customers provide a list of approved locations per vacancy.
- Harver collects the IP address of every candidate session.
- The system resolves the approximate geographic location from the IP.
- The system compares the IP with known VPN and other anonymizers provider IP addresses.
- Harver compares the resolved location to the customer’s approved list.
If the IP location is outside the approved list, or cannot be reliably resolved due to anonymization, the system flags the application accordingly.
Proctoring