NFC chips coming to slabs

CoinWeek reported on December 27 that PCGS will partner with HID Global to begin embedding high security Near Field Communication (NFC) chip technology in slabs starting in early 2020. There will be apps for NFC-enabled smartphones to verify the slabs are authentic, and to display the information on the slab. Typically NFC readers need to be 4cm or closer to read the chips. It may be possible to read the chips from a few feet away using a giant circular antenna.