Abstract: A secure token, possibly in the form of a smartcard, has a smart window with smart materials such as an electrophoretic or an electrochromic layer or assembly. When authenticated, such as by using biometrics or a password, the smart window layer is electronically pulsed, thereby transforming the once opaque layer to transparent and revealing information printed under, on or over the layer, or vice versa, transforming once transparent laminate to opaque and obfuscating printed information. In another embodiment, when the smart window layer is electronically pulsed to transform the once opaque laminate to transparent, a timer is started. At the end of a certain amount of time, the smart window layer is pulsed a second time, thereby transforming the layer back from transparent to opaque.