LESSONS FROM RECENT BANKING OUTAGES | IP HOUSE DATA CENTRE
What Recent Digital Outages Teach Us About Operational Resilience
By Jamieson Lee Hill, Data Centre Blogger and Video game writer, 7th August 2026
Article at Glance
- Introduction
- Recent Digital Outages Affecting UK Banks
- The Cost of Digital Banking Outages
- The 2024 CrowdStrike Global Digital Outage
- Common Themes Behind Recent Outages
- Why Recovery Point Objectives (RPOs) Matter
- The GitLab 2017 Database Outage
- UK Banks' Stated Causes of IT Failures
- Warning Signs on Legacy Systems and the Industry Response
- Lessons for Banks and Fintech Companies
- Building Greater Operational Resilience
- Frequently Asked Questions
- Sources
Introduction
Outages affecting UK financial institutions in recent years have revealed the vulnerabilities of online banking, showing how dependent consumers and businesses have become on digital banking. Whether caused by software defects, infrastructure failures or routine maintenance overruns, the impact is often immediate. Customers are unable to access accounts, businesses experience payment delays and customer support teams face significant increases in demand.
Although the technical causes vary, these incidents reveal common themes. Modern banking platforms are highly interconnected, with dependencies spanning internal systems, cloud services, payment providers and third-party applications. A problem affecting one critical component can quickly affect multiple customer-facing services.
Behind the scenes, engineering teams are validating databases, reconciling transactions, analysing system logs, restoring replicated services and ensuring customer information remains accurate before services return to normal. These incidents demonstrate that operational resilience is not defined by avoiding every outage, but by preparing systems, processes and infrastructure to recover safely when disruption occurs.
Modern financial services have become reliant on digital infrastructure. This article explores recent major banking disruptions including the 2024 CrowdStrike global outage incident, the lessons they provide for banks and fintech companies, and how resilient infrastructure helps strengthen operational resilience and business continuity.
This article also examines the damage and revenue losses from outages. It follows on from our article last month on Why Digital Banking Outages Happen.
2026 Digital Outage Events Affecting Banks in the UK
July 2026: Major UK Banking Outage
In July 2026, customers of several major UK banks, including Barclays, Lloyds and Halifax, experienced digital banking disruptions affecting Faster Payments, online transfers and account access.
Many users received error messages telling them that payments had failed, only to discover that transactions had been processed. This led to concerns that duplicate payments had been taken. Other people experienced delays in receiving funds, while some reported problems accessing mobile banking apps, online banking services and cash machines.
The incident generated a significant increase in customer support enquiries and demonstrated once again the financial sector's reliance on uninterrupted digital services. Resilient infrastructure is fundamental to reducing the risk and impact of digital outages.
Enterprise colocation services help organisations strengthen:
- High Availability: Maximising uptime through resilient infrastructure.
- Operational Resilience: Supporting the continued delivery of critical services.
- Business Continuity: Helping organisations recover quickly from disruption.
- Resilient Infrastructure: Providing secure, scalable and reliable data centre facilities.
During the July incident, Lloyds Bank confirmed an issue affecting the Faster Payments system and advised customers to check the status of transactions before attempting them again. Although services were restored later that day and no official cause was announced, the outage highlighted how even short-lived disruptions can affect customer confidence, everyday financial activity and business operations.
These are the main negative impacts of the July digital outage:
- Faster Payments and online transfers were disrupted.
- Some customers experienced duplicate or delayed payments.
- Mobile and online banking services were temporarily unavailable.
- Customer support teams experienced increased demand.
- Businesses and individuals faced payment delays and cash flow disruption.
- The outage temporarily reduced customer confidence in digital banking services.
Lloyds, Halifax, & Bank of Scotland (June 2026)
In June 2026, thousands of customers were locked out of their apps and online banking, preventing them from making essential payments, transferring money, or paying suppliers.
Services were restored within a few hours. Lloyds confirmed this June incident affected up to 447,936 customers. As a result, the bank made payouts of more than £200,000 for “goodwill” payments.
A Treasury Committee report in March 2025 showed that 9 of the “UK’s biggest banks and building societies were down for over 803 hours”. That equals 33 days of digital outage in a two-year period.
While colocation cannot prevent every software or application failure, it provides the resilient infrastructure needed to support high availability, business continuity and faster recovery. Enterprise colocation services help financial organisations strengthen their operational resilience through secure, redundant and highly connected data centre facilities.
Lloyds, Halifax, & Bank of Scotland (March 2026)
A software defect in March 2026 caused a digital outage to the UK banking system for Lloyds, Halifax and Bank of Scotland. An overnight IT update affected around 447,000 customers, highlighting how even routine software and system changes can seriously disrupt critical financial services. Lloyds Bank gave compensation to affected individuals.
These incidents highlight the importance of rigorous testing, effective change management and resilient infrastructure in maintaining operational continuity.
The Cost of Digital Banking Outages
Digital Outages affect the banking sector in the following ways:
- Customer trust
- Regulatory compliance
- Operational resilience
- Financial performance
Digital outages have significant financial, operational and reputational consequences for the banking sector. Research by GFT estimates that British investment banks lose around £2.4 million annually to IT outages, with the average incident lasting more than one hour and costing over £600,000.
Meanwhile, a UK Treasury Committee investigation found that the UK's nine largest banks and building societies experienced 158 IT failures between January 2023 and February 2025, resulting in more than 803 hours (33 days) of disruption.
Barclays also estimates that its January 2025 outage alone will cost between £5 million and £7.5 million in customer compensation, illustrating how quickly the financial impact of a major outage can escalate.
Key statistics about digital outages affecting the banking sector:
- £2.4 million estimated annual losses from IT outages (British investment banks)
- £600,000+ average cost of a major outage
- 4 major customer-facing outages per investment bank each year
- 158 IT failures across the UK's nine largest banks and building societies (2023–2025)
- 803 hours (more than 33 days) of cumulative service disruption
- £5–7.5 million estimated compensation cost for Barclays' January 2025 outage
- 55% of outages were linked to network issues
- 42% were attributed to human error
- 27% involved legacy systems
These figures clearly demonstrate that digital outages are no longer isolated IT incidents. Outages are a significant business risk for the banking sector.
2024 Crowdstrike Global Digital Outage
“The 2024 CrowdStrike incident demonstrated how technology failures can cascade across enterprises at scale, with an estimated $5.4 billion in damage to Fortune 500 companies.”
Source:
Hcltech.com, 2026
On 19 July 2024, a faulty software update for CrowdStrike's Falcon security platform caused 8 and a half million Windows computer systems to crash with the "Blue Screen of Death". It was not a virus or form of cyberattack. In fact, the issue arose from a defective content update.
Watch the BBC News from 2024 to discover what happened.
The CrowdStrike incident showed how a single software defect within a widely deployed third-party platform could lead to one of the largest global digital outages in world history.
Although it was not a cyberattack, the faulty update caused major disruptions worldwide including disruptions to banks, hospitals, airlines, retailers, emergency services, media and broadcasters and businesses worldwide. The effect on FinTech businesses alone was devastating with estimated losses of $1.15 Billion as the following quotation describes:
“CrowdStrike Outage: Financial Institutions Experience an Estimated $1.15B Loss. Eventually, however, the story unfolded over several weeks and we did indeed see many banks of all sizes across many different countries reporting issues.”
Source:
Orbograph, 2026
The 2024 Crowdstrike highlighted the real importance of operational resilience, supplier risk management and carefully controlled software deployment. The world witnessed how a major digital outage could bring essential banking and other services to a total standstill.
Common Themes Behind Recent Outages
Although the technical causes of each incident differ, recent banking outages reveal several common themes. Most are not caused by a single catastrophic failure, but by multiple technical and operational issues occurring at the same time. Software defects, infrastructure changes, third-party suppliers, network disruption and legacy systems can all contribute to service interruptions. In highly interconnected environments, a relatively small fault can quickly cascade across multiple services, making diagnosis and recovery significantly more complex.
The UK Treasury Committee identified third-party suppliers, software changes and internal system failures among the most common causes of recent banking outages. Similarly, Google's Site Reliability Engineering (SRE) guidance notes that cascading failures often generate secondary problems that can mask the original fault, increasing recovery times and operational complexity.
These incidents demonstrate that resilience depends on understanding how modern systems interact, rather than simply preventing individual component failures.
Why Are RPOs Important?
RPOs were covered in the first article in this two-part series. An RPO (Recovery Point Objective) is ‘the maximum amount of data loss, measured in units of time, that a business or data centre can tolerate during an unexpected outage or disaster before suffering significant harm.’ (Source: Coachroachlabs.com, April 2026)
Businesses must navigate a myriad of potential threats, from cyber hacks to technological outages in the modern era. Having an adequate RPO in place not only ensures the business knows its recovery objectives, but it also can prevent significant harm from unexpected events.
An RPO Solution by Gitlab (Why test recovery objectives matter in FinTech)
GitLab works extensively with fintech companies and financial institutions like banks. They help businesses build secure software while meeting strict rules. In 2017, GitLab lost six hours of database data (issues, merge requests, users, comments, etc).
They quickly discovered that their database backups were either inefficient or not set up correctly. This prevented them from returning to normal operations for an extended period, and they had to expend enormous effort in data recovery.
Their RPO solution has since dropped from 48 hours to 41 minutes in an effort to improve their recovery systems should a similar incident occur. Regular testing and an informed RPO are crucial for businesses that want to keep ahead of the damage caused by disruptive events.
UK Banks' Stated Causes of IT Failures
The common reasons given for IT failures in banking include problems with third-party suppliers, disruption caused by system changes and internal software malfunctions. According to the UK Treasury Committee, at least 158 IT failures affected millions of customers between January 2023 and February 2025, resulting in at least 803 hours of unplanned outages, equivalent to more than 33 days.
The financial consequences can also be substantial. During the Barclays outage from 31 January to 2 February 2025, 56% of online payments failed due to severe degradation of mainframe processing performance. Barclays estimated compensation of between £5 million and £7.5 million for customers affected by inconvenience or distress. The findings demonstrate that outages are not simply technical problems; they can create significant financial costs, customer distress and reputational damage. Source: UK Treasury Committee, 2025
Warning Signs on Legacy Systems in 2018
Concerns about the resilience of UK banking systems were being raised long before the recent wave of digital outages. In 2018, the Financial Conduct Authority (FCA) warned that there was "no immediate end in sight" to the growing number of technology and cybersecurity incidents affecting UK financial institutions.
Between April and December 2018 alone, banks and building societies reported 302 IT and cybersecurity incidents to the regulator, an average of one incident every day. Analysts warned that many organisations were relying on ageing legacy IT systems that would continue to present operational risks unless significant investment was made in modernisation and infrastructure resilience. (Source: Spectrum.eee.org, 2019)
The Industry Response
Since 2018, UK banks have invested billions of pounds in modernising legacy IT systems, strengthening cybersecurity, improving disaster recovery capabilities and enhancing operational resilience.
Banking industry regulators have also introduced stricter resilience requirements, requiring financial institutions to identify critical business services, test their ability to recover from disruption and reduce the risk of major outages.
While significant progress has been made, recent incidents demonstrate that maintaining resilient digital banking infrastructure remains an ongoing challenge.
Lessons for Banks and Fintech Companies
Recent outages provide valuable lessons for banks, fintech companies and payment providers. As financial services become increasingly digital, resilience must be built into every stage of technology design, deployment and operations.
Key lessons include:
- Treat software updates and system changes as potential operational risks.
- Reduce reliance on single suppliers and single points of failure.
- Continuously modernise legacy systems where practical.
- Test disaster recovery and business continuity plans regularly.
- Improve system monitoring to identify problems before they affect customers.
- Communicate quickly and transparently during service disruption.
- Invest in resilient infrastructure that supports high availability and rapid recovery.
Perhaps the biggest lesson is that operational resilience is no longer solely an IT responsibility. It has become a strategic business objective that directly affects customer confidence, regulatory compliance and long-term organisational resilience.
Building Greater Operational Resilience with IP House Data Centre
No organisation can eliminate every digital outage, but the right infrastructure can significantly reduce the risk of disruption and support faster recovery. IP House Data Centre provides enterprise colocation and resilient data centre infrastructure designed to help banks, fintech companies and other UK and London financial services organisations strengthen operational resilience.
IP House Data Centre can support a comprehensive resilience strategy through:
- High Availability Infrastructure: Resilient power, cooling and connectivity designed to maximise uptime.
- Geographic Redundancy: Supporting wider disaster recovery and business continuity strategies.
- Hybrid Cloud Deployment: Providing secure infrastructure that integrates with public and private cloud environments.
- Enterprise Colocation: Secure, scalable London data centre space for business-critical systems.
- Backup and Disaster Recovery: Providing resilient infrastructure to support backup and recovery strategies.
- Continuous Infrastructure Monitoring: Helping maintain reliable environments for critical workloads.
- Rigorous Change Management: Providing a stable infrastructure environment alongside an organisation's internal change management processes.
- Supplier Risk Management: Reducing infrastructure dependency through carrier-neutral connectivity and greater choice of network providers.
- Resilience and Failover Testing: Providing the infrastructure foundation organisations need to test business continuity and disaster recovery plans.
For organisations supporting business-critical financial services, IP House Data Centre provides the secure and resilient infrastructure upon which wider operational resilience strategies can be built. Combined with effective governance, software engineering and business continuity planning, this helps banks and fintech companies deliver reliable digital services while reducing the impact of future disruption.
Digital outages in FInTech are no longer merely IT incidents; they represent serious financial, regulatory, reputational and customer-service risks.
Resilient colocation can form a critical part of the solution. Contact IP House Data Centre today by completing the form below to discuss your infrastructure and operational resilience requirements.
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Frequently Asked Questions
Which major banking outages have affected the UK?
Recent outages affecting Lloyds, Halifax, Bank of Scotland, Barclays and other major banks have highlighted the importance of operational resilience across the UK financial sector.
What causes most digital banking outages?
Most banking outages result from software defects, network failures, third-party suppliers, legacy systems, human error or planned system updates rather than cyberattacks.
What is the impact of a banking outage?
Digital outages can prevent customers from accessing accounts, making payments and using online banking while causing financial losses, regulatory scrutiny and reputational damage.
What did the 2024 CrowdStrike outage teach the banking industry?
The CrowdStrike incident showed how a faulty third-party software update could cause widespread disruption, highlighting the importance of supplier risk management and operational resilience.
What are the biggest causes of banking service disruption?
The most common causes include software deployment failures, network issues, legacy infrastructure, cloud service disruption, third-party dependencies and human error.
What lessons can banks and fintech companies learn from recent outages?
Banks should invest in resilient infrastructure, rigorous software testing, effective change management, business continuity planning and disaster recovery to minimise future disruption.
How can resilient infrastructure reduce operational risk?
Resilient infrastructure improves service availability through redundancy, high availability, disaster recovery and hybrid deployment, helping organisations recover more quickly from disruption.
How does IP House Data Centre support operational resilience?
IP House Data Centre provides enterprise colocation, resilient power, carrier-neutral connectivity and secure infrastructure to help banks and fintech companies strengthen operational resilience and business continuity.
Sources:
- Outage or outrage? Why some banks stop working: https://www.10xbanking.com/insights/outage-or-outrage-why-some-banks-stop-working
- Lloyds, Halifax and Bank of Scotland back after online banking outage: https://www.bbc.co.uk/news/articles/c9d37gdxp7xo
- CrowdStrike: What was the impact of the global IT outage: https://www.bbc.co.uk/news/articles/cr54m92ermgo
- CrowdStrike Outage: Financial Institutions Experience an Estimated $1.15B Loss: https://orbograph.com/crowdstrike-outage-financial-institutions-experience-an-estimated-1-15b-loss/#:~:text=CrowdStrike%20Outage%3A%20Financial%20Institutions%20Experience%20an%20Estimated%20%241.15B%20Loss,-A%20recent%20CrowdStrike&text=Eventually%2C%20however%2C%20the%20story%20unfolded,many%20different%20countries%20reporting%20issues.
- GitLab.com database incident: https://about.gitlab.com/blog/gitlab-dot-com-database-incident/
- British Investment Banks Lose Over £2.4 Million to IT Outages in the Last Year: https://www.gft.com/uk/en/about-us/newsroom/press-and-news/2025/press-releases/british-investment-banks-lose-over-2-4-million-to-it-outages-in-the-last-year
- More than one month’s worth of IT failures at major banks and building societies in the last two years https://committees.parliament.uk/committee/158/treasury-committee/news/205611/more-than-one-months-worth-of-it-failures-at-major-banks-and-building-societies-in-the-last-two-years/
- Out of pocket due to Barclays payment problems? Here's how to get your money back: https://www.moneysavingexpert.com/news/2025/02/barclays-payment-delays-refund-compensation/
- Building Banking Resilience: How Financial Institutions Can Withstand and Recover from IT Outages: https://www.cognizant.com/uk/en/insights/blog/articles/building-banking-resilience-how-financial-institutions-can-withstand-and-recover-from-it-outages
- Major UK Banks Face Outages as Barclays, Halifax and Lloyds Clients Report Account Access Problems
11. The Fragile State of U.K. Banking Sector IT Systems Continues Unabated
https://spectrum.ieee.org/the-fragile-state-of-uk-banking-sector-it-systems-continues-unabated
12. UK Treasury Committee 2025: https://committees.parliament.uk/committee/158/treasury-committee/news/205611/more-than-one-months-worth-of-it-failures-at-major-banks-and-building-societies-in-the-last-two-years/
13. RPO and RTO: getting to zero downtime and zero data loss https://www.cockroachlabs.com/blog/demand-zero-rpo/
14. BBC News - Crowdstrike Outage 2024 https://www.youtube.com/watch?v=NUmfDGS2anU
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