Superchecks are manufactured in the USA on Hexagon, a new, customized for Superchecks security paper. The check stock is tightly controlled, and no checks are ever sold completely blank. Every check order is customized in some way for the end user. Companies that print their information on their checks still receive some type of customization on their Superchecks that is unique to their company.

The Supercheck contains a dual-tone Fourdrinier (true) watermark that is pressed into the paper at the mill and is visible from either side when held to the light. This dual-tone true watermark provides instant authenticity of the document and cannot be replicated, copied, or scanned.

The back of the Supercheck contains four pink lock-and-key icons printed with thermochromatic (heat-sensitive) ink that fades away when heated above 85º and reappears when cooled. The thermochromatic icon can be breathed or rubbed on for instant authentication of the check. Copiers cannot reproduce the reactivity of thermochromatic ink.

The Supercheck has a warning banner that explicitly describes overt security features and advises the recipient to look for these features before accepting the check. This warning banner may also help discourage forgers from "experimenting" with the check.

The Supercheck reacts to over 80 different chemicals. When chemically washed, the Supercheck will stain, speckle, or discolor and will no longer look like the original document.

The back of the Supercheck contains a box describing the effects of check washing on the check. The check is reactive to over 80 chemicals, and the box may act as a deterrent to chemical tampering.

Lines of varying width and spacing are printed on the back of each Supercheck to deter cut-and-paste alterations.

The design of the Supercheck includes an intricate background with subtle gradations between colors. The intricacy and gradations are difficult to reproduce on most color copiers.

The Supercheck is engineered with intricately designed borders that are difficult to duplicate. High-resolution borders are ideal for covert security because the design often distorts when copied.

The Supercheck contains ultraviolet light-sensitive fibers embedded in the paper that fluoresce under UV light and further serve as an authentication tool.

A security seal and Frank Abagnale's trademarked "signature" is printed on the back of the check in ultraviolet ink. It becomes visible under ultraviolet light and helps authenticate the original document.

The Supercheck contains printing so small that it appears as a line to the human eye, and can only be read with a magnifying glass. Microprinting will often blur when scanned or photocopied.

SAFEChecks security features are listed on the back of each check. This can aid the recipient in knowing which security features to look for in authenticating the check.