Alfa-Zet Systems provides security solutions for day-to-day applications. Their document discusses key data security threats such as stolen passwords, identity theft, and hacking. It argues that biometric authentication using palm vein recognition is a better solution than traditional methods like passwords, PINs, smart cards, and tokens because biometrics cannot be stolen, forgotten, copied, or shared. Palm vein recognition in particular is described as highly secure, precise, and private since veins are hidden under the skin and unique even in twins.