Patent ID: 11900353
Assignee: WORLDPAY, INC.
Field: IT methods for management (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform a method for generating a token corresponding to sensitive data, the method comprising:
receiving, by the processor separate from a merchant system, a dual tone multi-frequency (DTMF) tone encoding the sensitive data, wherein the DTMF tone was generated by a telephony system and was suppressed at the merchant system;
generating, by the processor, a low value token based on the DTMF tone;
generating, by the processor, a high-value token based on the low-value token, wherein the low-value token applies to one specific transaction and the high-value token applies to multiple transactions; and
transmitting, by the processor, the low-value token to the merchant system.