In addition to the proper administrative action, the penalty of prisión correccional in its minimum period, or a fine ranging from Forty thousand pesos (₱40,000) to Two hundred thousand pesos (₱200,000), or both, shall be imposed upon any attorney-at-law or any person duly authorized to represent and/or assist a party to a case who, by any malicious breach of professional duty or of inexcusable negligence or ignorance, shall prejudice his client, or reveal any of the secrets of the latter learned by him in his professional capacity.
The same penalty shall be imposed upon an attorney-at-law or any person duly authorized to represent and/or assist a party to a case who, having undertaken the defense of a client or having received confidential information from said client in a case, shall undertake the defense of the opposing party in the same case, without the consent of his first client.