It's not so much the breach as it is the lackluster response and lack of ownership of the problem that has me ready to cancel the service. Even the original blog post, which reported only 1/10th of the real information leak, started with: "Cyber attacks are one of the unfortunate realities of doing business today. Given the profile and widespread use of many of our products, Adobe has attracted increasing attention from cyber attackers."
Sure those are valid statements, but they don't really help me feel good about the Adobe platform going forward, and they do more to pass responsibility than to claim ownership.