On The Wire

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The payments industry is at an inflection point. Card networks still consume 2-3% of every transaction. Settlement takes days. Banks earn little while card schemes capture the value. It doesn't have to work this way. On The Wire explores the shift to account-to-account payments - where banks query a resolution network, funds move directly between accounts, and fees drop to 0.5%. For payment institution executives, ISV partners, and merchants rethinking the cost of commerce. Produced by payware - the transaction resolution network for instant A2A payments.

  1. 1h ago

    SCA Demystified: How Bank-Level Security Enables A2A Payments - Full Episode | On The Wire

    Most payment security is an attempt to protect a number that has already been copied. The alternative is infrastructure where no reusable credential exists at all. SCA requires two independent factors from different categories. Knowledge is something only the customer knows. Possession is something only they have. Inherence is something they are. Online card payments fail this by design, because the number, the CVV and the billing address all sit in the knowledge category and all live in databases somebody will eventually breach. Chip-and-PIN passes. A contactless tap under €50 does not, and is permitted anyway. The flow. A customer starts a €150 payment. Their banking app opens showing merchant, amount, reference and the account to be debited. No money has moved and nothing is authorised, they are looking at a request. The first factor is the app itself, cryptographically bound to that device with credentials provisioned when the customer proved their identity at account setup, which is why merely installing an app is not possession. The second factor is a biometric or PIN. On success the app generates a signature saying: this account holder, on this authorised device, at this timestamp, approved this amount to this merchant. Unique per transaction, not replayable. The bank validates, locks the funds, and settles in under ten seconds. Against 3D Secure. 3DS adds SCA to card payments and shifts liability to the issuer, which is genuine progress, but it only works online, it interrupts checkout with a redirect, card data is still transmitted and stored so PCI scope remains, and it does not stop the number being stolen and used where 3DS is not enforced. A2A does not add authentication to the payment. Authentication is how the payment starts. Nothing to steal, identical across every channel, and the issuing bank's existing security does the work. The numbers. A €20 million e-commerce retailer: €80,000 in card fraud, €15,000 in chargeback fees, €40,000 in false declines. €135,000 a year. Add A2A at 25% and A2A fraud comes in at €500, or 0.01% of that volume, chargeback fees drop to €9,000, and false declines fall to €25,000 because card filters can be tightened once there is a fallback that does not decline. €40,500 saved on fraud alone, before processing savings. A payment institution with 200 merchants on €500 million sees A2A fraud at 0.02% against card at 0.40% and disputes down 21% portfolio-wide. The full case study: a €15 million retailer at €9,300 a month in fraud costs. Month 3 at 8% adoption shows almost nothing. Month 6 at 18% is down 17%. Month 12 at 30% runs €6,370 a month, a 32% cut worth €35,160 a year, plus €31,500 in processing savings. €66,660 total against an €8,000 build. ROI in 44 days. The honest limits. Phones do get stolen, but the attack needs the device, the unlock, the banking authentication and speed, while banks watch for exactly those patterns. A lost phone is recoverable same-day, faster than a replacement card in the post. Recurring payments run on a mandate authorised with full SCA once, re-authenticated whenever amount or frequency changes, revocable in the banking app rather than by phoning the merchant. And SCA is not inherently slow. Early 3DS was slow, and the failure was the redirect and the forgotten password, not the requirement. Also covered: why authentication being technology-agnostic lets all seven initiation methods share one security model, and why security living in the banking layer improves automatically as banks upgrade while card-side improvements need network coordination. The strategic question: how long can card payments justify 2-3% when much of that cost exists to defend static credentials that should not exist. Full source material and the complete guide: https://go.payware.eu/p-sca-f Produced by payware - the transaction resolution network for instant A2A payments. AI-generated from payware's published research and documentation.

  2. 1h ago ·  Bonus

    SCA Demystified: How Bank-Level Security Enables A2A Payments - The Briefing | On The Wire

    Card fraud costs European businesses €1.8 billion a year. The industry's response has been to build more layers around the card number. That is the wrong problem. A card number, a CVV and a billing address are all the same kind of secret: something you know. Every one of them can be copied, and once copied, reused. Adding 3D Secure on top cuts online card fraud 40-60%, which is real, but it is a verification layer bolted onto a credential that still exists and can still be stolen elsewhere. Strong Customer Authentication asks for two factors from different categories: knowledge, possession, inherence. A phone with cryptographic keys provisioned by the bank is possession. A fingerprint is inherence. Together they do not protect a secret. They prove a specific person approved a specific payment at a specific moment, and produce a signature that cannot be replayed. That difference shows up in chargebacks. "I did not authorize this" is 60-70% of card disputes, and it works because proving authorization is genuinely hard. CVV proves nothing. Signatures are rarely checked. Device data is circumstantial. With SCA the bank has the device ID, the biometric match at 14:23:18, and a valid timestamped signature against the transaction details. The proof is cryptographic, not circumstantial, and that category of dispute effectively closes. Fraud outcome: 95%+ reduction against standard card payments. The stolen-phone objection deserves a straight answer. To use a stolen card you need the number, the CVV and an address, all obtainable from one breach. To use a stolen phone you need the physical device of a specific person, their device unlock, their banking app authentication, and to finish before they notice. It is not impossible. It is roughly 100x harder. Full episode for the flow step by step, the honest limits, the €66,660 case study, and how the same authentication carries all seven initiation methods. Full source material and the complete guide: https://go.payware.eu/p-sca-b Produced by payware - the transaction resolution network for instant A2A payments. AI-generated from payware's published research and documentation.

  3. Aug 16

    Eliminating Involuntary Churn: The Subscription Business Case - Full Episode | On The Wire

    Subscription businesses report churn as one number. Inside it are two different problems. One is a product problem: customers evaluated your service and left. The other is plumbing: customers never made a decision at all, and a payment method failed on their behalf. Most teams optimise the first and tolerate the second. Benchmarks: 3-5% involuntary churn for B2B SaaS, 6-10% for B2C, 8-12% for high-frequency monthly billing. A €10 million business at 7% loses €700,000 a year to payment failures. And the headline understates it, because a subscriber lost at month 8 instead of month 24 never delivers 66% of their potential revenue, making the true cost 2-3x the immediate loss. 30-40% can be won back if you move fast. 60-70% never return. Three cases. B2B SaaS, €18 million ARR, 3,200 customers at €5,625 a year. Total payment-related cost: €1,288,750, which is 7.2% of ARR. Processing is €198,000 of that. Involuntary churn net of recoveries is €1,024,000. Recovery operations cost €55,500 and rescue 35% of the losses at €828 per rescued customer. Expired cards alone take 115 customers a year: €646,875 of immediate revenue plus €862,500 of remaining lifetime value, so €1.5 million of value destroyed by expiry dates. Segment split is telling: 8.5% involuntary churn in small business, 5.2% mid-market, 2.1% enterprise, because enterprise has an AP team and small business has nobody watching. At 35% A2A: 47 customers saved, €264,375 retained (€353,000 with LTV), €37,800 in processing, €10,100 in recovery costs, €3,250 in chargebacks. €315,525 immediate against €54,500. Break-even 2.1 months, five-year NPV €1.52 million. 74% of the saved customers were expired-card saves. B2C beauty subscription boxes, €6.8 million ARR, 18,500 subscribers at €30.58 a month. 35% total churn, 25% voluntary, 10% involuntary. That is 1,850 subscribers a year, €679,000 gone, and total payment costs of €638,800 or 9.4% of revenue. Month-to-month billing means twelve chances a year to fail instead of one. At 38% A2A: 478 subscribers saved, €175,500 retained, €219,456 total, break-even 1.7 months. The finding that matters most is tenure. Card subscribers last 11.2 months. A2A subscribers last 15.8 months. 41% longer, which is 41% more lifetime value, from removing friction rather than adding product. Usage-based SaaS, €12 million ARR, €350 base plus €240 average usage. Here the failure mode is invisible until you look for it. A customer authorised for €350 gets a usage spike to €825. The card declines because the amount left the expected range, the bank flags it as fraud, and the customer is gone. 15% of customers spike above 2x base, 45% of those get declined, 38% of the declined churn. €339,000 of ARR a year. A2A removes the mechanism entirely, because the customer authenticates for the actual amount in real time rather than against a pre-authorised estimate. For variable billing this is not cost optimisation, it is product functionality. The honest limits. A2A does not fix insufficient funds, but that is 2-3% of renewals against 6-10% total card failure, and bank-account retries recover 55-65% versus 30-40% for cards. Customers do hesitate before the first payment, 28% expressing concern, but 87% report satisfaction afterwards and 92% continue, because A2A never touches the account, it sends a request they approve in their own banking app. Plus the migration playbook, and the first-mover asymmetry: customers signed up on A2A stay on A2A, and a competitor arriving two years later cannot convert them retroactively. The ROI hierarchy for subscription businesses puts reducing involuntary churn first and reducing processing fees fifth. A2A is one project that does both. Full source material and the complete breakdown: https://go.payware.eu/p-churn-f Produced by payware - the transaction resolution network for instant A2A payments. AI-generated from payware's published research and documentation.

  4. Aug 16 ·  Bonus

    Eliminating Involuntary Churn: The Subscription Business Case - The Briefing | On The Wire

    A SaaS company with €18 million in recurring revenue reports 8% annual churn. Two points of that are customers who decided to leave. Six points are customers who wanted to stay and were removed by a failed payment. That is €1.08 million a year. Not lost to a competitor, not lost to a bad product. Lost because a piece of plastic reached its expiry date. Break down the cause and it stops looking like churn at all. Expired cards drive 60-70% of it. Insufficient funds 15-20%. Bank fraud blocks on a legitimate recurring charge 10-15%. Card replacements the rest. Only one of those has anything to do with whether the customer wanted the product. The recovery loop is worse than the number suggests. When the renewal fails the customer gets an email asking them to log in and re-enter a card. 60-70% never do. Not because they decided to cancel, but because a payment failure is a good enough excuse to stop, and re-entering card details is friction competing against nothing. Bank accounts do not expire. That single fact is the whole business case. At 35% A2A adoption the same company saves 47 customers a year, retains €264,375 immediately and €353,000 counting remaining lifetime value, and cuts processing costs €37,800 on top. Combined immediate impact €315,525 against a €54,500 build. Break-even 2.1 months. Five-year NPV €1.52 million. Note the ratio. Processing savings are €37,800. Churn prevention is €264,375. The fee reduction is the rounding error. Full episode for the B2C subscription case at 9.4% of revenue, the usage-billing failure mode most teams never diagnose, and the migration playbook. Full source material and the complete breakdown: https://go.payware.eu/p-churn-b Produced by payware - the transaction resolution network for instant A2A payments. AI-generated from payware's published research and documentation.

  5. Aug 9

    Interchange Fee Regulation: The Global Trend - Full Episode | On The Wire

    A merchant paying 2% on a €100 card sale is paying three parties. €1.20 of interchange to the customer's bank. €0.20 of assessment to Visa or Mastercard. €0.60 of margin to their own processor. The largest slice goes to a bank the merchant has no relationship with, at a rate the merchant had no part in setting. That last clause is why regulators keep intervening. Every major market that has, what happened next, and where it goes. Europe. The 2015 Interchange Fee Regulation capped consumer debit at 0.2% and credit at 0.3%, against pre-regulation averages of 0.6-0.8% and 1.2-1.6%. Commercial cards stayed higher at 0.5-1.0%. A €10 million merchant at a 70/30 split went from €91,000 to €23,000 of interchange, saving €68,000. Issuing banks lost what had been 15-25% of card revenue and moved toward annual fees and interest. Some acquirers quietly raised other fees to recover margin. Rewards thinned. Australia. Regulated first, in 2003, cutting average interchange from 0.95% to 0.50%, then capping at 0.30% in 2016. Twenty-plus years of evidence: merchant costs fell, card usage kept growing, rewards shrank, and alternatives including bank transfers gained share. Lower interchange did not kill cards. It ended their economic advantage. United States. Durbin capped debit at $0.21 plus 0.05% for banks above $10 billion, cutting large-bank debit roughly 40% and saving merchants $8-10 billion annually. Small banks were exempted, creating a two-tier market. Credit at 1.5-2.5% remains unregulated. The Credit Card Competition Act failed in 2023. Merchant pressure builds, network lobbying holds. China. Debit near 0.35%, credit near 0.45%, held tight for years. The most instructive case in payments: Alipay and WeChat Pay grew into mobile A2A dominance past 80% of retail transactions, and cards became secondary. Low interchange did not protect card networks. It created the conditions for something else to win. Canada sits at 1.4-1.5% through voluntary agreements, India's RBI caps at 0.4-1.0%, Brazil is pushing down through antitrust pressure. Every major market, same direction. Why regulators keep returning to this fee. Card networks control 80-90% of global card volume, a duopoly setting prices without competitive discipline on merchants who cannot economically refuse. The pricing is regressive: grocery and fuel retailers on 1-3% margins pay the same percentage as luxury retailers, so merchants selling necessities subsidise premium rewards for higher-income cardholders. And processing has collapsed below €0.10 a transaction while percentage-based interchange did not follow. Textbook market failure. Then the counterintuitive part. Caps compress the A2A advantage from a 1.0-2.0 point spread to 0.3-0.7. On the surface that hurts alternatives. In practice it helps them: merchants accustomed to intervention are more open to alternatives, cheaper cards end the "expensive but unavoidable" resignation, and lower interchange starves the rewards budgets that made cards attractive, while A2A's advantages in speed and security never depended on merchant-funded incentives. The trajectory. 2026-2028: European caps hold, more countries adopt, convergence toward 0.2-0.3% debit and 0.3-0.5% credit. 2028-2032: possible European reduction to 0.1% and 0.2%, US credit regulation more likely. 2032-2040: interchange stabilising at 0.1-0.3% globally, economics shifting from extraction to service pricing, cards and A2A near cost parity. The wild card is bill-and-keep, abolishing interchange outright so each side covers its own costs. Low probability in five years, moderate in ten to twenty. The question was never whether interchange declines. It is who has adapted before it does. Full source material and the complete analysis: https://go.payware.eu/p-interchange-trend-f Produced by payware - the transaction resolution network for instant A2A payments. AI-generated from payware's published research and documentation.

  6. Aug 9 ·  Bonus

    Interchange Fee Regulation: The Global Trend - The Briefing | On The Wire

    Every market that has regulated interchange has moved the same direction. None have moved back. Europe capped consumer interchange in 2015 at 0.2% debit and 0.3% credit, down from 0.6-0.8% and 1.2-1.6%. For a merchant running €10 million at a 70/30 debit-credit split, interchange fell from €91,000 to €23,000. A 75% cut. Australia started in 2003, taking average interchange from 0.95% to 0.50%, then capped it at 0.30% in 2016. The US Durbin Amendment capped large-bank debit in 2011 and cut it about 40%, saving merchants $8-10 billion a year, while leaving credit at 1.5-2.5% untouched. China holds debit near 0.35% and credit near 0.45%. Twenty years of Australian data settles the first question. Lower interchange does not kill card payments. It removes their economic advantage. China answers the second. Interchange held low enough for long enough, and Alipay and WeChat Pay took mobile payments past 80% of retail transactions. Cards became the backup. Cheap cards did not protect cards. Here is the part the industry reads backwards. Interchange caps narrow the gap between cards and A2A. Before regulation the spread was 1.0-2.0 percentage points. After, it is 0.3-0.7. That looks like bad news for alternatives. It is not. Regulation proves payment fees are political rather than natural, which ends merchant complacency and legitimises the complaint. It cuts the issuer budgets that fund rewards, which is what made cards attractive to consumers in the first place. And it teaches merchants that advocacy works. Full episode for the market-by-market detail, why regulators treat interchange as market failure, and the trajectory to 2040 including the bill-and-keep endgame. Full source material and the complete analysis: https://go.payware.eu/p-interchange-trend-b Produced by payware - the transaction resolution network for instant A2A payments. AI-generated from payware's published research and documentation.

  7. Aug 2

    E-commerce Checkout Optimization: Beyond Card Payments - Full Episode | On The Wire

    Card checkout in 2026 is a good customer experience. One-click for returning buyers, wallets, guest flows, real-time fraud screening. The problem is not the front end. It is the economics behind it and the ways it fails. Total payment cost for e-commerce is 2-4% of revenue once you count everything: processing at 1.0-2.5%, fraud losses at 0.3-0.8%, false declines at 0.5-2.0% of revenue, expired card churn running 15-25% annual renewal failure, and chargeback operations at €8-25 per dispute. Merchants optimise the first line and ignore the other four. Three implementations, with the arithmetic. A fashion retailer, €22 million, 185,000 orders, €119 average, 42% repeat. Baseline payment cost €504,600, which is 2.3% of revenue against 8-12% net margins, so payments eat 20-25% of margin. A2A reached 3% in month one, 12% by month six, 25% at maturity. At 25%: processing down €38,500, fraud down €20,900, €16,000 in false-decline revenue recovered, chargebacks down €10,140, expired card benefit €8,000. Total €93,540 on a €9,000 build. Break-even 35 days, five-year NPV €458,000. Adoption skewed hard by segment: 32% among repeat customers, 8% among first-timers, 28% on mobile, 15% on desktop, 35% on orders above €150. A freelance services marketplace, €8.5 million, paying twice, once to collect from buyers and once to pay sellers. Baseline 3.0% of volume. Marketplaces carry 0.8% chargeback rates because "service not as described" is easy to claim and hard to fight. At 35% A2A: €32,725 processing, €5,950 payouts, €14,275 fraud, €14,620 chargebacks. €67,570 total, break-even 5.1 months. The structural win is that cryptographic authorization proof kills the "I did not authorize this" dispute, which is 60-70% of marketplace chargebacks. Sellers get paid instantly instead of waiting three days. A subscription box company, €4.2 million, 12,500 subscribers at €28 a month. Payment costs: €412,800. That is 9.8% of revenue. Processing is €58,800 of it. The other €354,000 is involuntary churn: 1,000 subscribers a year lost to failed payments, 65% of those to expired cards. 60-70% never update the card, because a failed payment is a good enough reason to quit. At 28% A2A: processing saves €10,584, involuntary churn prevention retains €70,560. Churn prevention is worth 6.7x the fee savings. Total €94,184, break-even 2.9 months. That ratio is the point. For subscriptions, payment stability beats payment cost, and it is not close. Also covered: why conversion did not drop in any of the three (flat at the retailer, up 0.2 points at the marketplace, up 0.4 at the subscription company); the honest limits, since A2A is debit-only and SEPA-bound, which still covers 85-95% of a European customer base and 70-85% of European card users who are on debit anyway; refunds landing in 10-15 seconds against 5-10 days for cards; and the optimisation details that moved the needle, like raising the bank option in the checkout list (+15% adoption) and putting bank logos next to it (+8%). Plus the competitive argument. Two €20M brands, one adopts in 2025 and one in 2027. The early mover banks €167,000 before the late mover starts, and reinvests it while the competitor is still paying full freight. For anyone who has audited their processing rate and thinks they have audited their payment costs. Full source material and the complete guide: https://go.payware.eu/p-checkout-f Produced by payware - the transaction resolution network for instant A2A payments. AI-generated from payware's published research and documentation.

  8. Aug 2 ·  Bonus

    E-commerce Checkout Optimization: Beyond Card Payments - The Briefing | On The Wire

    Ask an e-commerce merchant what payments cost them and they quote the processing rate. 1.2%. The real number is roughly double that, and most of it never appears on the processor's invoice. A retailer doing €22 million a year pays €264,000 in card processing. They also lose €104,000 to fraud and prevention tooling, €65,000 to false declines where their own filters blocked real customers, €42,000 to chargeback fees and the staff time behind them, and €30,000 to reconciliation and chasing expired cards. Total: €505,000. That is 2.3% of revenue, not 1.2%. The line that gets ignored is false declines. 1.5% of legitimate customers are turned away by fraud filters. They do not retry. That is lost revenue that shows up nowhere in a payments report, because a sale that never happened has no invoice. Add A2A at 25% adoption and the picture changes on five lines at once. Processing drops €38,500. Fraud drops €20,900, because bank authentication takes the A2A fraud rate to 0.02%. €16,000 of previously declined revenue completes. Chargebacks fall €10,140. Expired card friction is worth another €8,000. Combined: €93,540 a year against a €9,000 integration. Break-even in 35 days. The conversion worry does not survive contact with data. Across the three implementations in this episode, conversion was flat or up. More payment options do not paralyse customers. They stop customers from being declined. Full episode for the fashion retailer, the marketplace, and the subscription box company where payment costs hit 9.8% of revenue, plus the segment data on who actually adopts. Full source material and the complete guide: https://go.payware.eu/p-checkout-b Produced by payware - the transaction resolution network for instant A2A payments. AI-generated from payware's published research and documentation.

About

The payments industry is at an inflection point. Card networks still consume 2-3% of every transaction. Settlement takes days. Banks earn little while card schemes capture the value. It doesn't have to work this way. On The Wire explores the shift to account-to-account payments - where banks query a resolution network, funds move directly between accounts, and fees drop to 0.5%. For payment institution executives, ISV partners, and merchants rethinking the cost of commerce. Produced by payware - the transaction resolution network for instant A2A payments.