Rules
Rules are predefined instructions used by Sigma AI to evaluate transactions. They determine whether a transaction should be flagged for manual review, automatically approved, or rejected, based on the specific conditions defined within each rule.
Use Case
Consider you are managing a financial application that handles various transactions, you might set up rules to decide whether to approve, reject, or review transactions based on different criteria. For example, you could create a rule that automatically rejects transactions over a certain amount or flags transactions from specific countries for manual review.
How to create rules
- Login to Sigma.
- In the Transaction Montoring Module, Click on Rules tab.
- Click on Create Rule button.
- You can either create a rule from scratch or use one of the templates provided.
Example:
Image shows creating a rule that rejects all crypto related transactions from sigma dashboard
Typical Rules
Large Transaction Amounts
Flag any single transaction that exceeds a defined threshold, especially if it’s unusually high for the user.
Frequent Transactions to Same Account
Detect repeated transfers to the same beneficiary, which may indicate structuring or money laundering attempts.
Transactions from Sanctioned Countries
Block or flag transactions originating from jurisdictions under international sanctions.
High Number of Failed Transactions
Track users or merchants with repeated failed attempts, which may signal fraud or system abuse.
Unusual Transaction Times
Monitor transactions executed during non-business hours or at times unusual for the user.
Start simple, monitor outcomes, and tune your rules over time to reduce false positives while staying secure.