Most people don’t think about their bank failing them until the card gets declined at a grocery checkout. For millions of consumers, that moment isn’t hypothetical. It’s already happened, and the pace of banking network disruptions has accelerated sharply over the past few years. The question is no longer whether another major outage will occur, but whether you’ll be prepared when it does.
The Evidence: Outages Are Becoming More Common and More Consequential
Cyberattacks on the financial sector have more than doubled since the pandemic. That statistic, drawn from the IMF’s April 2024 Global Financial Stability Report, reflects a structural shift in the threat environment, not a temporary spike.
In the past two decades, nearly one-fifth of reported cyber incidents have affected the global financial sector, causing $12 billion in direct losses to financial firms, according to the IMF’s Global Financial Stability Report. Indirect losses, including reputational damage and customer attrition, push those figures considerably higher.
In a survey of nearly 600 IT and cybersecurity professionals in the financial services industry, 65% said they were hit by ransomware in 2024, up from 64% in 2023. That is the highest recorded rate since Sophos began tracking the figure.
The ICBC Attack: A Warning From 2023 That Still Resonates
The U.S. financial services division of Chinese bank ICBC was hit with a cyberattack that reportedly disrupted the trading of Treasurys in November 2023. It became one of the most watched financial disruptions in recent memory, precisely because of how far its consequences traveled.
The disruption was not limited to ICBC’s internal operations but extended to the broader market. In one day, more than $62 billion of U.S. Treasurys failed to deliver, indicating the scale of disruption in market operations. Staff reportedly resorted to using USB drives carried by messengers to complete trades.
Credit-rating agency Fitch warned that the LockBit attack “highlights financial institutions’ growing exposure to payment interruption risk arising from cybersecurity incidents as they become more frequent and severe.” The ICBC incident showed that no institution, regardless of size or global standing, is immune.
Third-Party Providers: The Hidden Single Point of Failure
Financial firms increasingly rely on third-party IT service providers, and such external providers can improve operational resilience, but also expose the financial industry to systemwide shocks. This dependency has quietly become one of the most significant structural vulnerabilities in modern banking.
On November 26, 2023, a major service provider for the credit union industry was targeted by a ransomware attack, resulting in a prolonged service outage that affected 60 credit unions. A single vendor failure had cascading consequences across dozens of institutions simultaneously.
From September 2023 through May 2024, credit unions reported 892 cyber incidents, with approximately 73 percent of all reported incidents related to the use or involvement of a third party. That concentration in third-party risk is one of the clearest patterns in recent incident data.
When Infrastructure Itself Goes Down: The Broader Outage Picture
In July 2024, a faulty update to CrowdStrike’s Falcon Sensor software caused a global IT meltdown, affecting millions of Windows-based systems worldwide. Banking, aviation, and healthcare were all disrupted simultaneously, illustrating how tightly interconnected modern infrastructure has become.
According to the Ponemon Institute’s 2024 Cost of Data Center Outages report, the average cost of a data center outage is approximately $9,000 per minute, with financial services among the sectors most severely impacted. For consumers, the disruption translates into frozen accounts, failed transactions, and inaccessible funds.
A report published by the UK Treasury Committee calculated that outages suffered by UK banks over the last two years amount to more than two months of cumulative downtime. That is not a rare-event problem. It is a systemic one.
The Systemic Risk: What Regulators Are Saying
The IMF’s April 2024 Global Financial Stability Report shows that while cyber incidents have thus far not been systemic, the probability of severe cyber incidents has increased, posing an acute threat to macrofinancial stability. Regulators worldwide are responding with new frameworks, though the pace remains uneven.
According to an IMF survey of central banks and supervisory authorities, cybersecurity policy frameworks, especially in emerging market and developing economies, often remain insufficient. Only about half of countries surveyed had a national, financial sector-focused cybersecurity strategy or dedicated cybersecurity regulations.
The Office of the Comptroller of the Currency’s final recovery planning guidelines took effect on January 1, 2025, with staggered compliance dates, applying to insured national banks and federal savings associations with at least $100 billion in average total consolidated assets. It signals that regulators are no longer treating operational resilience as optional.
Personal Preparedness: What Individuals Can Do Right Now
Experts say a good rule of thumb is to park your money in multiple places, with one senior economic analyst at Bankrate recommending holding multiple accounts that can give access to funds at any given time, underlining the importance of having an emergency savings account separate from a day-to-day checking account.
Outages that affect bank customers serve as a reminder of the importance of keeping some cash on hand. Experts advise keeping cash in at least a couple of different accounts in separate locations, as well as keeping a little bit of cash at home in a safe place.
If digital banking apps are offline, consumers may still be able to visit a branch in person, or call a representative over the phone, although wait times during widespread disruptions are often longer. Knowing your branch location in advance is a small but practical step that many people overlook.
What Banks and Institutions Must Build for the Future
A Fiserv outage in May 2025 disrupted key banking services and affected the infrastructure connecting core banking platforms to adopted applications for multiple banks, leading to service disruptions in peer-to-peer payment systems like Zelle, underscoring the importance of having robust backup systems and clear communication strategies in place.
Business continuity ensures minimal downtime by implementing failover systems, redundant infrastructure, and geographically dispersed data centers. Financial services rely heavily on uninterrupted operations, and even a brief outage can result in lost transactions, diminished client confidence, and revenue loss. Automated failover mechanisms ensure swift transition to backup systems without manual intervention.
While cyber incidents will occur, the financial sector needs the capacity to deliver critical business services during these disruptions. Financial firms should develop and test response and recovery procedures, and national authorities should have effective response protocols and crisis management frameworks in place.
The Role of Cash in a Cashless World
The digitalization of payments offers speed, convenience, and global reach, yet this transformation comes with additional vulnerabilities, chief among them the risk of outages that can paralyze payment systems. The more seamless digital finance becomes, the more invisible its fragility is to everyday users.
Cash transactions are not dependent on IT systems and can function during outages. This is not a nostalgic argument for returning to a pre-digital era. It’s a practical resilience consideration. Governments and emergency preparedness agencies consistently recommend holding physical money for exactly this reason.
The AWS crash in October 2025, Spain’s power outage in June 2025, and the global CrowdStrike Falcon Sensor outage in July 2024 disrupted payment systems worldwide, and these incidents underscore the irreplaceable role of cash as a backup when digital payments fail. The pattern across these events is consistent: digital infrastructure fails, and the fallback is analog.
Conclusion: Resilience Is a Shared Responsibility
The banking network is more capable and more interconnected than at any point in history. That same interconnectedness is precisely what makes it vulnerable. A single unpatched server, a third-party vendor’s compromised system, or a faulty software update can now ripple across dozens of institutions within hours.
The IMF has called the mounting risk of severe cyber incidents “an acute threat to macrofinancial stability,” and amid growing digitalization, heightened geopolitical tensions, and a lack of international cooperation, cybercrime could cost the world more than $23 trillion by 2027. The scale of what is at risk demands clear-eyed preparation, not panic.
For individuals, resilience means keeping accounts diversified, holding some cash on hand, and knowing your alternatives before you need them. For institutions, it means testing recovery plans against real disruption scenarios, not theoretical ones. The next cashless glitch is not a matter of if. Building habits and systems now, before the outage hits, is the only preparation that actually counts.