How do I ensure my suspicious activity monitoring with a transaction monitoring platform is compliant?

To make suspicious activity monitoring with a transaction monitoring platform compliant, focus on process, governance, and evidence—not just the software itself. Compliance usually depends on whether your program is risk-based, well-documented, consistently operated, and independently tested.

Key steps

1) Define a risk-based monitoring program

• Perform a customer, product, channel, and geography risk assessment.
• Set monitoring scenarios and thresholds that reflect your risks.
• Document why each rule, threshold, or model exists.

2) Make sure alerts are reviewed by trained staff

• Create clear procedures for:
  • alert triage
  • escalation
  • disposition
  • case investigation
  • SAR/STR filing decisions
• Train analysts on typologies, red flags, and how to document decisions.

3) Maintain strong governance over rules and models

• Track changes to monitoring scenarios, thresholds, and models.
• Validate new rules before deployment.
• Periodically review whether scenarios are still effective and not generating excessive false positives or false negatives.
• Keep approval records for all material changes.

4) Ensure complete and accurate data

• Monitoring is only as good as the data feeding it.
• Reconcile source systems regularly.
• Validate transaction data completeness, timeliness, and accuracy.
• Investigate data gaps, missing fields, and duplicate records.

5) Document alert handling thoroughly

For every alert or case, retain:

• why it triggered
• what was reviewed
• supporting evidence
• rationale for closing or escalating
• who reviewed it and when

This is critical if regulators ask how you reached your decisions.

6) Meet regulatory filing and retention requirements

• File SARs/STRs within required timelines.
• Preserve supporting documentation for the required retention period.
• Make sure your platform can support audit trails and exportable records.

7) Test the program independently

• Conduct periodic independent model/rule testing and program audits.
• Test sampling of alerts and closed cases.
• Verify that thresholds, tuning, and investigator decisions are consistent with policy.

8) Manage overrides and manual decisions carefully

• Require approval for threshold overrides or manual suppressions.
• Log who made the change, why, and for how long.
• Review overrides periodically.

9) Align the platform with your AML/compliance framework

Your monitoring platform should integrate with:

• customer due diligence / KYC
• sanctions screening, where applicable
• watchlist and entity resolution systems
• case management
• escalation to compliance/legal

10) Keep a clear audit trail

A compliant platform should support:

• immutable logs
• user access controls
• role-based permissions
• timestamped case activity
• version history for rules/scenarios

Common compliance pitfalls

• Using thresholds that are not documented or risk-justified
• Failing to tune scenarios after business changes
• Poor data quality
• Inadequate case notes
• No evidence of periodic validation
• Excessive investigator discretion without controls
• Missing or delayed regulatory filings
• Weak access control or inability to demonstrate who changed what

Practical checklist

Ask yourself:

• Do we have an updated risk assessment?
• Are scenarios mapped to specific risks and typologies?
• Can we show why thresholds were chosen?
• Are analysts trained and monitored?
• Do we retain complete audit trails and case evidence?
• Are changes tested, approved, and logged?
• Do we independently validate the program?
• Can we produce reports for regulators quickly?

Bottom line

Compliance comes from demonstrating that your suspicious activity monitoring is:

• risk-based
• documented
• consistent
• auditable
• independently tested
• properly governed

If you want, I can also give you:

1. a compliance checklist for a transaction monitoring platform, or
2. a policy/template for suspicious activity monitoring procedures.