Analyst Report

Liminal Link Index Report: Friendly ACH Fraud in Banking

2026 Market Outlook and Leading Vendors

Liminal Link Index Report: Friendly ACH Fraud in Banking

What's inside the report

Dive deep into the evolving dynamics of friendly ACH fraud and how financial institutions and Fintechs are adapting in 2026.

➡️ 4 key takeaways inside:

Detection speed is critical
Delayed detection and manual review remain major operational constraints, accelerating demand for real-time analysis and automated response.

Hybrid models are becoming the standard
Institutions are moving beyond rules-only approaches toward hybrid detection models that combine rules with AI/ML for better adaptability and accuracy.

Fraud patterns are increasingly networked
Friendly ACH abuse often spans accounts, transactions, and counterparties, making isolated alerts insufficient for identifying coordinated behavior.

Transparency matters as much as intelligence
As AI adoption grows, explainability and defensibility are emerging as core requirements for risk, compliance, and audit teams.

Download the full report to learn more.

Unit21 recognized as leading vendor

Unit21 enables risk and compliance teams to prevent friendly ACH fraud by detecting complex first-party abuse patterns across transactions, instruments, and entities—not just individual events.

What makes Unit21 stand out?

Liminal highlights Unit21’s ability to:

  • Monitor sender and receiver behavior directionally
  • Detect coordinated and multi-account abuse
  • Capture sequential patterns common in friendly fraud (e.g., “A-then-B-then-C” activity)
  • Identify fraud that traditional rules and static models miss
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Frequently Asked Questions

What does it mean to be recognized as a leader in ACH first-party fraud prevention?
Why is Unit21 considered a leading solution for first-party fraud prevention?
How does Unit21 approach first-party fraud differently than traditional fraud tools?
What differentiates Unit21 from other ACH fraud prevention platforms?
How does Unit21 help reduce losses from friendly ACH fraud?
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