How Using Sentry and Verisoul Saves KADRO 60 Hours per Week

The Challenge

KADRO, a premium insights provider connecting seasoned insights consultants with world-class brands, built its reputation on rigorous data quality. Their approach addressed fraud across two spectrums: respondent quality and response quality.

In practice, this meant relying on 5+ internal tools and dozens of hours per week of manual human review. Their in-house checks (survey speeding flags, logic checks, and open-end reviews) were effective but difficult to scale.

Even with expert review, consistent judgment calls were hard to make on two particularly thorny scenarios:

• Bad respondents with good responses
• Good respondents with lower-quality responses

As the volume and sophistication of fraudulent activity grew, including AI-generated responses that could convincingly impersonate domain experts, the limitations of a manual approach became impossible to ignore. A manual process that once caught clear-cut fraud was no longer sufficient to protect data integrity at scale.

The Solution

When KADRO discovered that Sentry and Verisoul together covered both sides of their quality equation, the decision was clear.

Respondent Integrity: Verisoul

Verisoul focuses on respondent integrity, using active device and network checks, probabilistic matching, and email signals to catch location spoofers, fraud rings, and never-before-seen proxies on otherwise clean IPs.

Response Quality: Sentry

Sentry evaluates how respondents are engaging, taking a behavioral approach to identify inattentiveness, yea-saying, and low-quality open-ended responses before a respondent ever enters the survey. Sentry also tracks behavioral events during screening, flagging suspicious activity such as copy-paste behavior, translation services, and applications designed to help fraudsters complete surveys.

Together: A Two-Layer Defense

The combination maps directly onto KADRO's own two-spectrum framework: one tool for the respondent, one for the response. With Verisoul embedded directly inside Sentry and integrated with one click, KADRO no longer needs to juggle multiple platforms. The result is a single, streamlined fraud stack that addresses both sides of the quality equation simultaneously.

"We used to clean 30% of our data and now we're cleaning more like 5% - a lot less bad respondents in our data."

Results

The results of combining Sentry and Verisoul were immediate and measurable across three dimensions:

Fraud Reduction

• Post-field clean-out rates dropped from 30% to 5% of total sample
• Programmatic blocking significantly reduced the time spent on manual case-by-case review
• Consistent, reliable decisions on borderline respondents and responses

Time Savings

• 60 hours per week previously spent on manual data cleaning reinvested into higher-value work
• That time is now reinvested into higher-value parts of the business
• Repetitive, error-prone review workflows fully automated

Operational Simplicity & Flexibility

• One integrated platform replaces 5+ internal tools
• Customizable detection rules and adjustable screening stringency per project
• Tighten or loosen thresholds without rebuilding the fraud stack from scratch

What's Next

KADRO has built the Sentry + Verisoul combination into a formal part of their client pitch, presenting it to researchers at some of the largest publicly traded companies in the world. What began as an internal quality solution has become a competitive differentiator and a key part of how KADRO demonstrates its commitment to data integrity to prospective clients.