Card product implementing multiple security features and related anti-fraud techniques

A card product comprising:

• a base layer;
• and
• a plurality of abradable opaque coverings disposed over the base layer;
• wherein the card product implements at least two of the following security features:
• (a) as a first security feature, at least one of the opaque coverings covers sensitive information hosted by the card product, while at least one other of the opaque coverings does not cover sensitive information and so serves as a decoy;
• (b) as a second security feature, the opaque coverings are of a custom, non-traditional shape;
• (c) as a third security feature, a reference image is printed on the card product, wherein the reference image matches a shape of the opaque coverings;
• (d) as a fourth security feature, an image and/or text is printed across at least one of the opaque coverings, and a reference image is printed on the card product, wherein the reference image matches the printed image;
• (e) as a fifth security feature, at least one of the opaque coverings includes a border portion of a first color and an interior fill portion of a second color which differs from the first color;
• (f) as a sixth security feature, the card product further comprises a color-changing layer disposed over the base layer and having the plurality of opaque coverings disposed thereover, wherein the color-changing layer is configured to irreversibly change color when sufficient pressure and/or thermal energy has been applied thereto;
• (g) as a seventh security feature, the card product further comprises a solvent indicator configured for chromatographic movement of coloration through the card product when contacted by a solvent;
• (h) as an eighth security feature, at least one of the opaque coverings is adhered via a cross-linkable adhesive;
• and
• (i) as a ninth security feature, the card product further comprises a digital watermark.