3SI Security Systems

3SI Security Systems, now enhanced by our recent merger with Wren Solutions, is redefining ATM security by offering comprehensive solutions that not only deter theft and violence but also prioritize the recovery of cash and assets. Our integrated approach combines advanced surveillance technologies with our proven tracking, camera, and video solutions providing ATM operators with a robust defense against attacks and ensuring the safety of both assets and individuals – from the ATM user to the ATM technician and ATM owner/operator.

With over 53 years of experience and a commitment to innovation, 3SI boasts a remarkable track record: a 90%+ success rate in preventing ATM-specific crime, with over $150 million in recovered stolen property, and more than 19,000 criminals apprehended. Our solutions are designed to meet the unique needs of ATM operators, offering unparalleled protection and peace of mind. Together, we can make a #SaferWorld.

Discover how 3SI is making ATMs safer for operators and customers at

3SI Security Systems

610-280-2000 Direct
800-523-1430 Toll Free
[email protected]

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Products & Services

Tracking Technology

Cash Tracker™ - Cassette

Track stolen ATMs, cash machines, and cash cassettes for recovery.

ATM Tracker™ is a fully automatic solution that silently and immediately notifies law enforcement of the attack as it occurs. ATM Tracker tracks the ATM or cash machine, cash inside, and criminals during their escape. This highly effective solution has recovered 90% of all stolen ATM cash and has led to criminal apprehension. Get more information on ATM Tracker

Cassette Tracker™ is an add-on solution to the ATM Tracker system for enhanced cash cassette protection. Criminals may attempt to steal just the cash cassette inside of the ATM or rob technicians on their service rounds. As an added layer of security, Cassette Tracker will silently activate with motion and detection away from the ATM Safezone. Get more information on Cassette Tracker

Tracing Technology

SecuriDab® LT

Protect cash in ATMs, cash machines, and cash cassettes with ink-staining technology.

SecuriDab® LT will detect various attacks and automatically stain the cash inside the ATM rendering it worthless to criminals. Get more information on SecuriDab LT

24/7 Support

To support our solutions, our 24/7/365 Tracking Support Center (TSC), based in the United States, is on the job. Every crime event involving a 3SI solution is logged and managed by the TSC, and we support local dispatchers and law enforcement every step of the way during an active track. The same 24/7 support services are available to our customers.

Law Enforcement Division

Our dedicated LED provides training and ongoing support to police agencies relating to the installation of our tracking solutions within local jurisdictions. Comprised of active and retired law enforcement officers, this division along with our 24/7 Tracking Support Center makes our tracking solution second to none.

White Papers

Press Releases / Blog Posts

ASA Member Videos

ATM Suppliers & Service Providers