Disadvantages:
Ø A lack of economic
incentives for merchants and the high cost
of
implementation is keeping the SET protocol from gaining
acceptance
ØMost companies will need to add new validation,
protocol-
management
and encryption / decryption software.
Due to this
initial
costs are high.
ØThere’s really no good estimate of what it will cost, but
it may cost
at
least $3 per card holder.
ØThe inclusion of
Certificate Authorities, Acquirers and electronic
wallets create a much more complex
transaction environment.
This has both cost and latency
implications.