Stacy Cowley, New York Times:
Credit card networks are finally ready to concede what has been obvious to shoppers and merchants for years: Signatures are not a useful way to prove someone’s identity. Later this month, four of the largest networks — American Express, Discover, Mastercard and Visa — will stop requiring them to complete card transactions.
The signature, a centuries-old way of verifying identity, is rapidly going extinct. Personal checks are anachronisms. Pen-and-ink letters are scarce. When credit card signatures disappear, handwritten authentications will be relegated to a few special circumstances: sealing a giant transaction like a house purchase, or getting a celebrity to autograph a piece of memorabilia — and even that is being supplanted by the cellphone selfie.
Card signatures won’t vanish overnight. The change is optional, leaving retailers to decide whether they want to stop collecting signatures.