how do psd3 and psr affect the ATM businesses, from the business perspective?

The shift from PSD2 to the PSR (Payment Services Regulation) represents a move from regulating **access** to regulating **intent**. As we pivot from the technical plumbing of APIs to the legal accountability of "impersonation," we enter a realm where financial law intersects with cognitive science, cryptography, and information economics. ## 1. The Oracle Problem: Bridging Digital Execution and Human Intent If a transaction is cryptographically "valid" (signed with the correct private key) but "unintended" (induced by a fraudster), is the system broken, or is the human? The PSR’s liability shift treats banks as the ultimate "Oracles" of human intent. This mirrors the **Oracle Problem** in decentralized finance—the difficulty of getting real-world data (like "I am being coerced") into a deterministic system. Exploring this would unlock a new dimension: the technical impossibility of proving "negative intent" without invasive behavioral monitoring. - **Primary Source:** Nick Szabo’s seminal 1996 essay, [Smart Contracts: Building Blocks for Digital Markets](https://www.fon.hum.uva.nl/rob/Courses/InformationInSpeech/CDROM/Literature/LOTwinterschool2006/szabo.best.vwh.net/smart.contracts.html). It provides the foundational logic for why "code as law" fails when the human interface is compromised. ## 2. The Privacy-Safety Paradox: Surveillance Capitalism as a Compliance Tool To meet PSR Article 59 requirements and stop "vishing," banks must monitor not just *what* you spend, but *how* you hold your phone, your typing cadence, and your atmospheric pressure (to detect "location spoofing"). This creates a collision course with **GDPR's principle of Data Minimization**. We are entering a "Panopticon of Payments" where financial security can only be guaranteed by total behavioral surveillance. This rabbit hole explores whether the PSR inadvertently mandates the very "Surveillance Capitalism" that European privacy laws seek to dismantle. - **Primary Source:** Shoshana Zuboff’s *The Age of Surveillance Capitalism*. Her analysis of "behavioral surplus" is essential for understanding the unintended consequences of banks becoming behavioral observers to mitigate liability. ## 3. Zero-Knowledge Proofs (ZKP) and the "Digital Exclusion" Resolution How do we solve the "Digital Exclusion Paradox" (providing SCA for non-smartphone users) without weakening security? The answer may lie in **Zero-Knowledge Proofs**, which allow a user to prove they possess a secret (knowledge) or a characteristic (identity) without revealing the data itself or relying on a high-end device. Investigating ZKPs in the context of the PSR would reveal a path toward "Privacy-Preserving Inclusion," where hardware tokens or even analog methods could generate a cryptographic proof that satisfies the regulator without requiring an iPhone. - **Primary Source:** [Eli Ben-Sasson et al., "Scalable, transparent, and post-quantum secure computational integrity"](https://eprint.iacr.org/2018/046). This work on STARKs explains how we can verify complex claims (like SCA) with minimal data overhead. ## 4. Adverse Selection and the "Lemons" Market of Financial Data The PSR mandates **API Performance Parity**, but it cannot easily mandate **Information Parity**. In a world where banks must share data with Third-Party Providers (TPPs), "Adverse Selection" suggests that banks will strategically share "clean" data while keeping the "predictive" data (the insights derived from AI) for themselves. This rabbit hole examines the economic friction of Open Finance: will mandated sharing lead to a "Market for Lemons" where the only data moving through APIs is that which has the least competitive value? - **Primary Source:** George Akerlof’s [The Market for "Lemons": Quality Uncertainty and the Market Mechanism](https://www.jstor.org/stable/1879431). This text is vital for understanding why technical parity does not equal economic equality in data ecosystems.