Viewing a single comment thread. View all comments

3

bwqrdsaf wrote

If the sticker tag is flat and somewhat large like about 1" around, it's probably RF. Target and Toys R Us for example uses this. If it's narrow and thick (about 1/4" wide and 1/8" thick), it's likely AM.

RFID is different and is rarely used in shoplifter prevention in USA AFAIK. Each RFID tag contains unique serial number meant to be used for inventory tracking at warehouses and factories. Stores that uses RFID for security use would have scanner at each checkout to scan the whole basket or cart and ring up total in seconds so you could simply walk through, use smart phone to pay, and leave.

1

DamnScalper wrote

So you could hack a RFID label? Say put the code of a cheaper item?

1

bwqrdsaf wrote

RFID can't be changed (only deactivated) but generally scanner only looks for the bar code which are black and white stripes about 1" by 1" (2.5cm by 2.5cm) with 10, 12, or 13 numbers below it. Changing that will fool scanner but don't get too greedy like that one couple who used 29 cents notebook UPC on dozens of $25 baby formula cans.