To verify that a document, photo, or text message is authentic and has not been altered before it is admitted as evidence in court. Process:

Adds a second layer of security, such as a one-time password (OTP) or a push notification to a mobile device.

Showing that the message, email, or post contains information that only the alleged author would know.

Simply showing a screenshot is often insufficient; original metadata (timestamps, file properties) is required. 3. Physical & Historical Authentication

Uses TLS/SSL certificates to verify the server or client identity.

A witness with personal knowledge must testify that the item is what it claims to be.