In need of legal services, Niko secured an appointment to meet with Atty. Henry of Henry & Meyer Law Offices. During the meeting, Niko divulged highly private information to Atty. Henry, believing that the lawyer would keep the confidentiality of the information. Subsequently, Niko was shocked when he learned that Atty. Henry had shared the confidential information with his law partner, Atty. Meyer, and their common friend, private practitioner Atty. Canonigo. When confronted, Atty. Henry replied that Niko never signed any confidentiality agreement, and that he shared the information with the two lawyers to secure affirmance of his legal opinion on Niko's problem. Did Atty. Henry violate any rule of ethics? Explain fully.