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Sandra Leonardo currently serves as a Cybersecurity Supplier Assessor at Siemens Energy, responsible for planning and conducting cybersecurity reviews of business partners and third parties. Prior to this role, Sandra spent 14 years at Truphone, where positions included Risk and Compliance Auditor for CyberTRUST, Supplier Manager, Technical Service Manager, and Commercial Service Manager, contributing to policy development, compliance, and supplier management. Sandra's earlier experience includes a Business Analyst role at Vodafone Portugal, focusing on roaming agreements and regulatory obligations, and a customer service role, along with an Information Assistant position during Expo'98. Sandra holds an Executive Course in Negotiations from CATÓLICA-LISBON, a Post-graduation in Telecommunications and Multimedia Management from ISEG, and a degree in International Relations from ISCSP-ULisboa.