ECSA v10: EC-Council Certified Security Analyst v10

An organization has deployed a web application that uses an encoding technique before transmitting data over the Internet. This technique helps the organization hide confidential data, such as user credentials and email attachments, while in transit. It takes 3 bytes of binary data and splits them into four 6-bit chunks. Each chunk is then encoded as its respective printable character.

Identify the encoding technique used by the organization?