Overview The Zayo Group’s world-class GSOC helps cli- ents proactively defend against cyber threats. Through Zayo’s Advanced Threat Management Security portfolio that integrates the ArcSight security information and event management (SIEM) platform, clients gain access to usable incident data and GSOC services, including advanced analytics and threat hunting tech- nologies that reduce risk landscapes and op- timize protection. Challenge The project began in early 2015 within the com- munications infrastructure group at Allstream, Inc., a leading Canadian communications provider, prior to its acquisition by Zayo Group in Q1 2016. Mike Vamvakaris, Vice President of Managed Cyber Security at Zayo Group, was there from the beginning. “We were com- peting for the opportunity to buil

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