ANALYSIS
October 25, 2025
8 min read
On October 19-20, 2025, Amazon Web Services suffered a catastrophic DynamoDB DNS failure affecting thousands of businesses globally. In Colombia, where digital payment adoption had reached 40%, the crash exposed a critical vulnerability: when the cloud goes down, digital money becomes inaccessible. This incident revealed why physical cash remains an essential backup in an increasingly digital economy.
DolarPeso Research Team & Criptolalia
Technology & Financial Infrastructure Research
Co-authored by DolarPeso Research Team and Criptolalia, combining technical infrastructure analysis with financial services expertise to examine digital payment resilience in Colombia
At 11:48 PM PDT on October 19, 2025 (2:48 AM Colombia time on October 20), Amazon Web Services experienced a catastrophic failure in its US-EAST-1 region—one of the world's largest cloud infrastructure zones. A race condition in DynamoDB's automated DNS management system left an empty DNS record for the service's regional endpoint, effectively making DynamoDB unreachable. What began as a DNS error cascaded into a 10+ hour outage affecting 113 AWS services and thousands of applications globally.
In Colombia, the impact was immediate and severe. Nequi, Daviplata, PSE payment gateways, Bancolombia's online banking, and dozens of fintech platforms went dark simultaneously. Colombians attempting to pay for lunch, send money to family, or complete online purchases found themselves locked out of their digital wallets. The money was there—but completely inaccessible.
Colombia had embraced digital payments with remarkable speed. By late 2024, 40% of transactions used electronic methods, up from just 22% in 2022. Nequi boasted 17 million users, Daviplata served 14 million, and PSE processed billions in monthly transactions. The digital revolution seemed unstoppable.
Most Colombian fintech platforms—Nequi, Daviplata, Ualá, Rappipay, and others—rely on Amazon Web Services for core infrastructure. This concentration created a single point of failure: when AWS went down, they all went down together.
Unlike traditional banking infrastructure with physical branches and local data centers, cloud-native fintechs lacked meaningful local backup systems. Their architecture prioritized scalability over resilience, assuming AWS would maintain 99.99% uptime. The DynamoDB DNS failure proved that assumption catastrophically wrong—a single race condition in one service's DNS management brought down 113 dependent services.
Colombian payment systems depended not just on AWS, but specifically on AWS us-east-1 in Virginia, United States—6,500 kilometers away. A networking failure in Northern Virginia immediately crippled payment processing in Bogotá, Medellín, and Cali.
Between 8:46 AM and 7:30 PM Colombia time, digital payments essentially ceased functioning for millions of users. The consequences revealed how dependent the economy had become on functioning cloud infrastructure.
Supermarkets, restaurants, and shops across Colombia faced impossible choices: accept only cash (alienating digital-only customers), manually process cards (slow and risky), or close early. Many small businesses that had gone "cashless" found themselves unable to accept any payments whatsoever.
Online retailers using PSE payment gateways saw checkout pages fail completely. Rappi, Uber Eats, and local delivery platforms couldn't process payments. Estimated losses exceeded $180 million in failed transactions during the outage window.
Colombians traveling without physical cash found themselves unable to pay for transportation, food, or lodging. Digital wallet balances became useless numbers on error screens. Social media flooded with stories of people stranded at gas stations, restaurants, and hotels.
Once word spread about the outage, Colombians rushed to ATMs to withdraw cash. By noon, many ATMs in Bogotá and Medellín had run dry. Banks that maintained physical branches and local infrastructure became lifelines—while cloud-native fintechs could offer no help.
Merchants who had maintained cash operations weathered the crisis smoothly. Street vendors, traditional tiendas, and cash-accepting businesses experienced surge demand while digital-only competitors sat helpless.
The outage revealed architectural decisions that prioritized growth and efficiency over resilience and independence.
Most Colombian fintechs deployed entirely within AWS us-east-1 to minimize costs and latency. Multi-region redundancy would have added expense and complexity—but it would have kept systems running during the outage.
Unlike traditional banking systems that can process transactions locally and sync later, cloud-native fintechs required constant connection to AWS. When that connection broke, the apps became useless—even for viewing balances or transaction history.
Well-designed systems degrade gracefully during outages, offering reduced functionality rather than total failure. Most Colombian fintech apps simply crashed, offering no fallback options whatsoever.
Colombian financial regulators had not mandated local data redundancy or infrastructure resilience standards for fintech platforms. Traditional banks faced strict requirements; fintechs operated with minimal oversight.
Fintech business continuity plans assumed infrastructure availability. They had detailed protocols for fraud, cyberattacks, and regulatory changes—but not for prolonged cloud provider failure.
While digital systems crashed, cash continued working perfectly. No AWS connection required. No cloud infrastructure dependency. No single point of failure.
Cash transactions require no electricity, no internet connection, no cloud services, and no third-party authorization. A peso bill works identically whether AWS is up or down, whether there's power or not, whether you have signal or not.
Cash transactions settle instantly with zero counterparty risk. No waiting for blockchain confirmations, no worrying about payment processor insolvency, no dependence on banking system health. The transaction is final the moment money changes hands.
Every merchant in Colombia accepts cash—by law and by tradition. Digital payment acceptance remains patchy, dependent on merchant category, location, and technical capacity. Cash works everywhere, always.
Cash transactions leave no digital trail, require no account, and depend on no institution's permission. During the outage, this autonomy proved invaluable—people with physical cash could transact freely while digital wallet users waited helplessly for AWS recovery.
AWS restored service around 7:30 PM Colombia time, and digital payment systems gradually came back online through the evening. But the damage to trust was lasting.
As systems recovered, payment platforms faced massive backlogs. Transactions submitted during the outage processed hours later, creating confusion about account balances and payment status. Some users saw duplicate charges; others saw delayed confirmations.
In the week following the outage, Colombian banks reported 23% increase in physical cash withdrawals as customers reduced reliance on digital-only payment methods. ATM usage spiked to levels not seen since 2020.
Major Colombian fintechs announced plans to diversify across multiple cloud providers—AWS, Google Cloud, Azure, and local data centers. But implementation would take months or years, and smaller players lacked resources for such redundancy.
Colombia's Superintendencia Financiera began drafting infrastructure resilience requirements for fintech platforms, including mandatory multi-region deployment and offline functionality standards. But as of late 2025, these remain proposals, not requirements.
Businesses that had eliminated cash entirely reconsidered. Retail chains reintroduced cash registers "for emergencies." Digital-first companies acknowledged they needed offline backup plans—and cash was the most reliable option.
The AWS outage affected countries worldwide, but Colombia's experience offered unique lessons about payment system resilience in developing economies rapidly adopting digital infrastructure.
Brazil, Mexico, Argentina, and Chile all use similar cloud-dependent fintech architectures. All face identical vulnerabilities. If AWS us-east-1 can cripple Colombia for 11 hours, it can cripple the entire region simultaneously.
Relying on US-based cloud providers means Colombian payment infrastructure ultimately depends on foreign systems, foreign regulations, and foreign business decisions. When AWS prioritized recovering US government services first during the outage, Colombian fintech waited.
Those with access to physical cash weathered the crisis. Those fully committed to digital-only lifestyles—disproportionately younger, urban, middle-class users—found themselves most vulnerable. The outage revealed that "going cashless" meant accepting systemic dependency.
The October 2025 DynamoDB DNS failure demonstrated that digital payment systems in Colombia remain vulnerable to infrastructure failures beyond local control. A single race condition in AWS's DNS management cascaded through 113 services, crippling digital payments for hours. For travelers visiting Colombia, this means maintaining cash reserves is not just convenience—it's essential backup for when cloud infrastructure fails. Services like DolarPeso enable visitors to secure Colombian pesos before arrival or immediately upon landing, ensuring payment capability regardless of AWS status. For residents, the outage reinforced why complete dependence on digital wallets carries real risk. Maintaining emergency cash reserves proved invaluable when DynamoDB's failure made digital money inaccessible.
The AWS outage didn't kill digital payments in Colombia—fintech platforms recovered, users returned, and digital adoption continues growing. But it shattered the illusion that digital systems could fully replace cash without accepting systemic vulnerability.
Modern payment infrastructure faces an uncomfortable truth: increased digitalization means increased dependency on functioning cloud infrastructure, reliable internet connectivity, and foreign tech platforms. When any link in this chain breaks, digital money becomes inaccessible—while cash continues working perfectly.
The optimal strategy isn't abandoning digital payments—they offer tremendous convenience, security, and efficiency. But it's not abandoning cash either. The resilient approach combines both: digital payments for everyday efficiency, cash as backup for infrastructure failures, internet outages, and cloud provider catastrophes.
Colombia's October 19-20 experience provided an expensive reminder: in a world of cloud dependencies and infrastructure vulnerabilities, physical cash remains the ultimate offline payment system. No DynamoDB required, no DNS lookups needed.
Don't let digital infrastructure failures leave you stranded. Exchange your dollars online and pick up physical cash at our partner locations—offline resilience for an online world.