Easily integrated covert solution for product and packaging protection

To make your brand secure and keep counterfeiters at bay, we offer two authentication solutions: on-the-spot authentication systems, and web-based authentication systems. They both have one common feature- they are simple, effective, and easy to use and integrate into your information system.

Stealth SI™

GSSC’s patented Stealth SI™ technology is the latest result of our continuous innovation process. It provides the state-of-the-art anti-counterfeiting protection, invisible to the human eye and high-tech scanners. Our signature hidden images are embedded into our customers' existing printing stations, without costly taggants, package design modifications, or any other significant expenses.

Stealth SI™ images are virtually impossible to scan, at least not with enough details to successfully reproduce embedded hidden artwork. On the other hand, our patented authentication system can recreate embedded hidden images from the small bits of information present in the scan of the original packages.

Proven SI® Technology

If your package design facilitates UV inks, Infra-red inks, holograms, or halftone screens, embedding SI® hidden images into these security layers will make them bullet-proof and extend the life-span of your existing brand protection technology.

SI® Variable Data Encoding

Lot number, date of production, or any other variable information can be easily embedded in real time into the SI® hidden image on your label and printed using most label printers and digital printers.



Graphic Security Systems Corporation has provided its patented security technology to government-authorized security printing firms and major corporations for more than 25 years. GSSC has a depth of experience that began in traditional banknote printing. Alfred V. Alasia, its founder and inventor, patented Scrambled Indicia® process in the mid 70’s, and pioneered the commercial- ization of this technology for document security and brand protection. GSSC’s new technologies have continued to provide cost-effective, high quality security solutions, tailored to protect client’s products and documents against counterfeiting and fraud. Recent innovations, such as patented Stealth SI™ technology and SI® Web Decoder™, have only strengthened our long- established position as an industry leader in the security printing area.