For security teams managing payment environments, the past two years have delivered a perfect storm. COVID-19 accelerated e-commerce adoption at historic rates, pushed consumers toward cashless transactions, and created newThird-party payment integrations that expanded attack surfaces. Meanwhile, ransomware operators capitalized on disruption, refining their tactics to target organizations already struggling to adapt.
A recent discussion hosted by the PCI Security Standards Council examined these converging pressures in Europe. Security leaders from Barclaycard Payments and the PCI SSC outlined how payment landscapes shifted and what threats followed. The takeaways matter for anyone responsible for protecting cardholder data or managing merchant payment environments today.
At a glance
- E-commerce payments in the UK jumped 49% in 2020 compared to the prior year, with online food transactions surging over 79%
- Contactless payment limits rose to £100 in the UK, normalizing card use for smaller purchases
- Cash withdrawals in the UK fell roughly 4% immediately after the March 2020 lockdown announcement
- Ransomware attacks increased approximately 150% in 2020, with damages projected to reach $20 billion by 2021
- Third-party payment providers—ISVs and payment facilitators—now handle significant portions of merchant transactions, complicating compliance visibility
Europe's Payment Landscape Has Permanently Changed
The pandemic forced rapid behavioral shifts that show no signs of reversing. When stores closed, consumers moved to online channels almost overnight. Businesses scrambled to build e-commerce capabilities they didn't have, or leaned on social media and delivery platforms to move inventory.
The numbers are striking. UK e-commerce payments grew by nearly half year-over-year in 2020. Online food sales alone climbed past 79%. These aren't just pandemic-era anomalies—researchers and payment analysts expect card and digital payment volumes to remain elevated as consumer habits settle into new patterns.
Contactless limits played a role too. The UK raised its threshold to £100, making card payments practical for purchases that previously required cash. This reduced friction for consumers and merchants alike, but it also expanded the volume of transactions flowing through payment infrastructure that attackers find attractive.
For security professionals, the implication is straightforward: payment environments are larger, more distributed, and more complex than they were in early 2020. The attack surface grew proportionally.
Why Ransomware Operators Zeroed In on Payment Disruption
Ransomware groups don't miss opportunity. During the pandemic, they found organizations juggling rapid operational change, expanded remote workforces, and shortened timelines for deploying new payment systems—all while facing financial pressure.
According to industry estimates cited during the PCI SSC discussion, ransomware attacks jumped roughly 150% in 2020. The financial damage projection for 2021 hit $20 billion globally. These aren't abstract numbers; they represent real organizations facing operational paralysis, data exposure, and extortion demands.
One speaker at the PCI SSC Global Community Forum described ransomware as "almost the perfect crime." Attackers can encrypt an entire organization's data within hours of initial access, then use double-extortion tactics—demanding payment for decryption keys while threatening to leak sensitive information if ransoms go unpaid.
Payment processors and merchants became high-value targets precisely because downtime costs money and because compromised payment data has clear resale value on criminal markets.
The Third-Party Problem Nobody Wants to Own
Here's where things get genuinely difficult for merchants and their security teams. The payment ecosystem now involves a thicket of third-party providers: independent software vendors integrating payment gateways, payment facilitators handling transaction routing, and cloud platforms offering embedded checkout experiences.
These providers solved real business problems during the pandemic. A restaurant could add QR-code ordering and contactless payment without building infrastructure from scratch. A small retailer could accept e-commerce payments within days instead of months.
But every new third-party relationship introduces implicit trust questions. Who performed the due diligence? Does your organization fully understand what services each provider handles and where cardholder data actually flows? How do these integrations factor into your PCI DSS scope?
The PCI SSC discussion highlighted that merchants often struggle to map these relationships clearly. When something goes wrong—whether a provider suffers a breach or a misconfiguration exposes transaction data—determining responsibility and containing the fallout becomes exponentially harder.
Say you manage payment security for a mid-sized retailer. You contracted with a payment facilitator last year to handle online checkout. The facilitator uses an ISV for fraud detection and another sub-processor for billing reconciliation. If ransomware hits any node in that chain, your customer transaction data could be at risk—even though you never directly controlled the affected systems. Your PCI compliance obligations, however, may still apply.
This fragmentation is a structural challenge the industry hasn't fully solved. It requires aggressive vendor management, clear contractual language about security responsibilities, and continuous monitoring beyond traditional perimeter defenses.
Our analysis
The intersection of surging e-commerce, expanded contactless use, and escalating ransomware activity creates a risk environment that traditional security approaches struggle to address. Antivirus alone won't catch ransomware operators who move quickly, use legitimate tools for lateral movement, and exfiltrate data before encryption begins.
What's different now versus pre-pandemic? The speed of change. Organizations adopted new payment channels faster than they could secure them. Third-party providers became load-bearing components of transaction infrastructure without commensurate scrutiny. Meanwhile, ransomware groups professionalized—offering ransomware-as-a-service, sharing victim lists, and negotiating payments like enterprises.
The PCI SSC and payment industry leaders are acutely aware of these dynamics. Their guidance emphasizes maintaining solid access controls, segmenting payment environments, and verifying that every third-party provider in the payment chain meets security standards. But guidance and execution remain distant for many organizations.
Security teams should treat this moment as a forcing function for revisiting payment infrastructure architecture. The question isn't whether ransomware operators will probe payment environments—it's whether your defenses are positioned to detect and contain them before damage spreads.
What to watch next: Watch for regulatory pressure on ransomware payments. Some jurisdictions are moving toward mandatory disclosure of ransom payments, which could alter how organizations respond to incidents. Also monitor how payment standards evolve to address third-party risk explicitly—the next version of PCI DSS may include stronger requirements for vendor management and service provider oversight.
Bottom line
E-commerce growth and ransomware surges aren't separate stories—they're intertwined byproducts of pandemic disruption that will persist. Organizations processing payments need to account for a larger, more fragmented attack surface and more sophisticated adversaries. Antivirus and perimeter tools remain necessary but insufficient. What the current environment demands is aggressive patch management, strict least-privilege access, offline backups, and rigorous vetting of every third party that touches transaction data.
The shift away from cash is permanent. The attackers know it. Your security program needs to reflect that reality.
Key takeaways
- Map every third-party provider in your payment environment and understand exactly what data they access or store
- Assume ransomware operators will target payment infrastructure; design defenses to detect and contain them before encryption completes
- Revisit PCI DSS scope to account for new e-commerce integrations added during the pandemic
- Prioritize offline backups and incident response plans that address double-extortion scenarios
- Pressure test your vendor due diligence processes—implicit trust is the gap attackers exploit
Frequently asked questions
How did COVID-19 change the payment threat landscape?
The pandemic accelerated e-commerce adoption dramatically, forced organizations to deploy new payment channels quickly, and expanded third-party provider involvement in transaction processing—all while ransomware operators increased attack volumes by roughly 150%.
What makes third-party payment providers a security concern?
Each third-party integration introduces new data flows and trust relationships that organizations may not fully understand or control. When a provider suffers a breach or misconfiguration, merchants can face data exposure and compliance obligations even though they didn't directly manage the affected systems.
Why are ransomware groups targeting payment environments specifically?
Payment processors and merchants handle high-value data with direct financial value, operate under tight uptime requirements that increase pressure to pay ransoms quickly, and often have complex, fragmented infrastructure that's difficult to secure uniformly.
What does PCI DSS require regarding third-party payment providers?
PCI DSS holds organizations accountable for the security of all components in their cardholder data environment, including third-party services that handle payment data. Organizations must verify provider compliance, document data flows, and include all relevant systems in their compliance scope.
How should security teams respond to rising ransomware threats against payment infrastructure?
Implement layered defenses including behavior-based detection, strict network segmentation between payment systems and general IT infrastructure, offline backups, and tested incident response plans that specifically address ransomware scenarios including double-extortion threats.