Enhanced security for transaction requests utilizing automatic source identification

A non-transitory computer-readable media having computer-readable instructions stored thereon that, when executed by one or more processors of a transaction processing system, cause the one or more processors to:

• receive, from a point of sale device, a transaction request having a header and a first transaction level identifier;
• identify a source sender and a first source sender information based on the header;
• obtain a second source sender information about the source sender from a database, the database containing client information;
• generate a second transaction level identifier by:
• identifying a seed value based on the transaction request and a shared secret with the point of sale device,
• generating a code based on the seed value;
• and
• hashing the code to generate the second transaction level identifier;
• and
• determine an approval status of the transaction request by:
• declining the transaction request based on a determination that the first source sender information does not match the second source sender information;
• declining the transaction request based on a determination that the first transaction level identifier and the second transaction level identifier do not match;
• or
• approving the transaction request based at least in part on a determination that the first source sender information matches the second source sender information and a determination that the first transaction level identifier matches the second transaction level identifier.

A method comprising:

• receiving, from a point of sale device, a transaction request having a header and a first transaction level identifier;
• identifying a source sender and a first source sender information based on the header;
• obtaining a second source sender information about the source sender from a database, the database containing client information;
• generating a second transaction level identifier, the generating comprising:
• identifying a seed value based on the transaction request and a shared secret with the point of sale device;
• generating a code based on the seed value;
• and
• hashing the code to generate the second transaction level identifier;
• and
• determining an approval status of the transaction request by:
• declining the transaction request based on a determination that the first source sender information does not match the second source sender information;
• declining the transaction request based on a determination that the first transaction level identifier does not match the second transaction level identifier;
• or
• approving the transaction request based at least in part on a determination that the first source sender information matches the second source sender information and a determination that the first transaction level identifier matches the second transaction level identifier.