(1) (Customer Service Representative) A person who handles a customer's request regarding a bill, account changes or service or merchandise ordered. Agents in call centers are known as CSRs. See call center.

(2) (Certificate Signing Request) A request made to a certificate authority (CA) from an organization or individual to obtain a digital certificate. The requesting party includes information that proves its identity and digitally signs the CSR with the private key that is generated from a public/private key pair. See digital certificate.