Skimming happens when a malicious actor uses a tag reader in an unauthorized manner, in order to collect information about a person’s tag. The victim never knows or accepts to be skimmed. For example, card skimming is an illegal practice that consists of the illegal collection of data from a card’s magnetic stripe. This information can then be copied onto a blank card’s magnetic stripe and used by malicious actors to make purchases and withdraw cash in the name of the victim.