How serious was this email security breach? Why did the Kaiser Permanente leadership react so quickly to mitigate the possible damage done by the breach?

Review the article Breaching the Security of the Kaiser Permanente Internet Patient Portal: the Organizational Foundations of Information Security (Collman and Cooper) and provide an in-depth analysis addressing the following questions:

How serious was this email security breach? Why did the Kaiser Permanente leadership react so quickly to mitigate the possible damage done by the breach?
How likely do you think future security breaches would be if Kaiser Permanente did not take steps to resolve underlying group and organizational issues? Why?
Assume that you were appointed as the administrative member of the crisis team created the day the breach was uncovered, what recommendations would you make for investigating the root cause(s) of the breach? Outline your suggested investigative steps.
What role should the administrative leadership of Kaiser Permanente take in ensuring that KP Online is secure? Apart from security and HIPAA training for all personnel, what steps can be taken at the organizational level to improve the security of KP Online?
Your analysis paper should be concise and address the questions directly. A word limit of 1000-1500 words is expected. Please use at least five scholarly references and follow APA style and format as a Word or PDF document.