Don't think it, ink it; InkSure Technologies makes the mark genuine and permanent. The company markets custom security inks that are designed to prevent counterfeiting. The company also sells readers that use the company's proprietary software to identify and analyze marks printed with its inks, which can be used on a variety of paper and plastic materials and have a unique chemical code. Applications for InkSure Technologies systems include financial and government documents, pharmaceutical and tobacco product packaging, retail gift certificates, and travel tickets. Aviation security company ICTS International holds roughly a 30% stake in InkSure Technologies.