Transmitting financial details, such as banking identification numbers, via electronic mail presents inherent security risks. Email communications are generally not encrypted to a degree that ensures confidentiality against determined interception. Exposing this sensitive data increases the probability of unauthorized access and potential financial compromise.
The inherent vulnerabilities of email protocols render it a less secure channel for sharing private financial information. Historically, the relative ease of intercepting and deciphering email communications has made it a favored target for malicious actors seeking to obtain personal data for fraudulent purposes. The consequences of exposure can range from identity theft to direct financial loss.