Mark O'Hare

Mark O'Hare

Chief Information Security Officer


Mark O’Hare is the Chief Information Security Officer at Mimecast with over 10 year’s tenure in the business. After more than 20 years in the IT sector, Mark has deep experience in many areas of IT and a broad knowledge of designing and implementing security programs that apply to people, process, facilities and technology. Mark has focused on securing Mimecast’s infrastructure by leading Mimecast’s cybersecurity program for the last 8 years.

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