Banking correspondence templates are reusable message formats used for routine financial communication, such as payment instructions, account confirmations, invoice follow-ups, or requests to banks and counterparties. They may include standard wording, signatures, reference numbers, and contact details, which makes them efficient for legitimate operations but also useful to attackers.
In cyber security, these templates matter because stolen or exposed examples can help criminals impersonate a company, imitate internal finance staff, or craft convincing business email compromise messages. Even if the content is not highly sensitive on its own, it can reveal how an organization phrases payment requests and who approves them. Defenders reduce this risk by limiting access to finance documents, avoiding unnecessary detail in templates, using strong email authentication, and verifying payment changes through separate channels.