Transaction terminal silent alert systems

An alert system for a transaction terminal, the system comprising:

• one or more processors;
• and
• a memory in communication with the one or more processors and storing instructions that, when executed by the one or more processors, are configured to cause the system to:
• receive, from a user device, an authentication request to complete a transaction at the transaction terminal, the authentication request comprising a first fingerprint scan obtained via the user device;
• determine that the first fingerprint scan matches a stored under-duress fingerprint scan for sending an under-duress signal;
• determine an estimated travel time for law enforcement to arrive at the transaction terminal;
• direct the transaction terminal to delay the transaction for a predetermined wait time based on the estimated travel time;
• send an alert notification to a law enforcement device, the alert notification comprising an indication of when the predetermined wait time will expire;
• receive, from a law enforcement device, a suggested predetermined wait time extension;
• and
• adjust the predetermined wait time based on the suggested predetermined wait time extension.

A method for triggering a silent alert for an under-duress transaction at a transaction terminal, the method comprising:

• receiving, from a user device, an authentication request to complete a transaction at the transaction terminal, the transaction authentication request comprising a fingerprint scan obtained via the user device;
• determining that the fingerprint scan matches a stored under-duress fingerprint scan corresponding to an under-duress transaction signal;
• sending an alert notification to a law enforcement device;
• directing the transaction terminal to delay the transaction for a predetermined wait time;
• and
• directing the transaction terminal, the user device, or both to activate one or more recording systems.