Mark Risher

CEO and Co-founder, Impermium

Mark Risher is CEO and Co-founder of Impermium, a service which uses Internet user reputation to secure the Internet's most prominent sites against account compromise and authentication fraud. An expert on the bad things people do online, Risher previously served as both Spam Czar and Sr. Director of Product Management for Yahoo! Mail, where he led development and execution of product strategy across the platform. Mark graduated from Harvard University with a degree in Computer Science.

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