Bcc stands for blind carbon copy which is similar to that of Cc except that the Email address of the recipients specified in this field do not appear in the received message header and the recipients in the To or Cc fields will not know that a copy sent to these address.

Is BCC really hidden?

BCC stands for “blind carbon copy.” Unlike with CC, no one but the sender can see the list of BCC recipients. ... However, the BCC list is secret—no one can see this list except the sender. If a person is on the BCC list, they'll see only their own email on the BCC list.

What is the use of BCC in email?

BCC, which stands for blind carbon copy, allows you to hide recipients in email messages. Addresses in the To: field and the CC: (carbon copy) field appear in messages, but users cannot see addresses of anyone you included in the BCC: field.