Speakers
Johan Gerber
Executive Vice President, Payment Networks
Mastercard
Johan Gerber is Executive Vice President, Payment Networks, at Mastercard and a member of the company's Management Committee.
Johan leads the team responsible for building and scaling the technology and infrastructure that powers economies, connects payment ecosystems and enables money to move safely and seamlessly around the world.
As payments evolve into a multi-money future, where account-to-account payments, cards, digital assets and other forms of value increasingly work together, Johan is actively shaping how these ecosystems connect. He is responsible for advancing Mastercard's Payment Networks strategy, ensuring people and businesses can choose how they pay and get paid with confidence, security and trust.
During more than 25 years at Mastercard, Johan has held leadership roles across security, cyber intelligence, identity and network innovation. Most recently, he led the growth of Mastercard's cybersecurity business, helping strengthen trust in the digital economy through identity, data science and AI-driven solutions.
Prior to joining Mastercard, Johan spent 10 years investigating organized and financial crime with the South African Police Service. He holds a degree in Forensic Auditing and Accounting from Rand Afrikaans University.
Speaking At
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1:00–2:30pmTue 17 NovPublic-Private RoundtableRoundtable Room 1Invite-Only
Sovereignty & Resilience
Timebomb or Damp Squib? Building Trust by Addressing Errors, Frauds and Scams in DPI
Public-Private RoundtableRoundtable Room 1Invite-Only
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Camilla BullockChief Executive OfficerEmerging Payments Association Asia
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Curtis MatlockChief Executive OfficerProto
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Dr. David PorteousChief Executive OfficerIntegral: Governance Solutions
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Ilya BrovinChief Growth OfficerSumsub
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Johan GerberExecutive Vice President, Payment NetworksMastercard
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Miguel GeronillaChief Information Security OfficerGCash
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Pavle AvramovicDirector of Research & PolicyFinancial Innovation for Impact
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Jayshree VenkatesanSenior Vice President & Head of Partnership DevelopmentAccionModerator
About this session
Digital public infrastructure is scaling faster than the machinery meant to fix it when it fails. More than 36 countries have committed under the 50-in-5 campaign to design, implement and scale at least one DPI component by 2028, and in countries from Brazil to India, digital payments and digital ID already operate at population scale.
Volume brings problems: more transactions mean more errors, and society-scale systems create new attack surfaces. Instant interoperable payments mean the money is transferred within seconds, but once it leaves an account and reaches another, there is little that can be done. Transfer of funds could take place to the wrong person, through a mistake in the phone number that acts as the alias, or done under duress. The Global Anti-Scam Alliance found in 2025 that 57% of adults worldwide had experienced a scam and 23% lost money as a result. Yet redress has not kept pace. Of a number of DPI grievance mechanisms assessed recently, a minority met a minimum "liveness" threshold — a published policy with acknowledgment and resolution timeframes, an escalation path, at least two working complaint channels, and basic case-capture capacity.
That gap has consequences. Where liability for fraud is unassigned, harm falls between the cracks: the direct cause is an unknown malicious party, even though the system's speed and reach enabled the attack. And as DPIs start to link across borders, none of the existing mechanisms can follow a grievance from one jurisdiction to another.
This roundtable will explore the state of play for trust in DPI solutions, as well as emergent potential solutions being deployed around the world, and what trust frameworks for DPI will look like in the coming years, including the approaches for creating interoperable grievance redressal frameworks.
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