- Digital Public Infrastructure and Systemic Cyber Risk 2026
- Executive summary
Executive summary
The edition on a few pages: the abstract, the key messages, the headline finding and what each steward reads in it.
Contents
- ·Edition home
- ·Executive summary
- 1Digital systems fail together
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Shared provider failure that overlaps a power or network loss
- 6Readings from the other desks
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
S.1Abstract
Digital public infrastructure is the shared layer that identity, payments and data exchange run on, and that cloud and network providers carry. The 2024 to 2025 evidence shows the same mechanisms at work in very different events. A single software update on 18 July 2024 affected an estimated 8.5 million Windows devices3. A fault in the DNS records for one regional endpoint disrupted many cloud services on 19 and 20 October 20254. A configuration file that grew past a built-in limit disrupted a global edge network on 18 November 20255. Government agencies reported long-lived access to the networks of communications, energy, transport and water operators6 and a global campaign against telecommunications and transport networks7. The UK handled 204 nationally significant incidents in one year, up from 898. The rails carry large flows: UPI processed 20.7 billion transactions in October 202513 and Pix 313.3 million in one day in December 202514. Access is not yet universal: about 2.2 billion people were offline in 202510. This baseline reads these events as mechanisms, not as a list. It ranks no country or provider, attributes no attack and recommends no policy.
S.2Key messages
Six readings that frame the digital public infrastructure baseline, and the eight questions this edition answers, each with its status and source.
Yes: software faults, configuration changes, hazards and hostile access recur across providers.3456
Do digital failures have common causes?Reported
Through shared dependence on a few software, cloud and edge layers.345
How do failures spread?Reported
No: agencies describe long-lived access as well as disruption.67
Is the threat only about outages?Reported
The UK handled 204 nationally significant incidents in one year; ENISA analysed 4,875.81
How large is the incident load?Reported
UPI reached 20.7 billion transactions in a month; Pix 313.3 million in a day.1314
How large are the payment rails?Reported
About 2.2 billion people were offline in 2025, mostly in lower-income countries.10
Who is still outside?Reported
One national data-exchange layer signs and encrypts all outgoing data.15
Does design help?Reported
A shared provider failure that overlaps a power or network loss. SCN-SR10-DPI-01
What will 2027 test first?Expert input
S.3Headline finding
ReportedEQL 4NRF-STRATEGIC-DPI-GLOBAL-2026-BASELINE-CYB-006
The UK handled 204 nationally significant incidents from September 2024 to August 2025, up from 89 the year before, and 18 highly significant incidents, up from 12.
| Item | Bar, scaled to the largest value | Value |
|---|---|---|
| Sep 2023 to Aug 2024 | 89 | |
| Sep 2024 to Aug 2025 | 204 |
Source: NCSC8. Both values as published. The 204 includes the 18 highly significant incidents.
Nationally significant incidents made up 48% of the 429 incidents handled. The count measures what one agency handled and classed, so it is a sign of load on that agency and of reporting practice as much as of threat8.
S.4At a glance
S.5What each steward reads in it
GCRI · KEY T
Technical Truth
The evidence supports reading digital public infrastructure as one dependent stack.
GRF · KEY M
Public Meaning
For most people digital failure arrives as a card that will not work, an app that will not load or an office that has stopped.
GRA · KEY F
Capital Meaning
Readiness implications only. A single event can carry large losses, as the 2025 manufacturer case shows, and large payment flows run on shared rails.
NEXUS
Synthesis
Digital risk is well described event by event and thinly measured as a system.
S.6What this edition is, and is not
What this edition is
A baseline: the 2026 state of the world’s digital public infrastructure and systemic cyber risk and the couplings through which it carries risk into other systems. It synthesises published evidence and ranks no country, company or asset.
What it is not
Not a cyber-security ranking, a threat attribution, a vulnerability disclosure or an assessment of any provider, operator, regulator or government. Operation, protection and recovery of digital systems rest with owners, operators and competent authorities.
What comes next
National, regional and sector evidence feeds the 2027 digital public infrastructure edition through the federation. Each edition reports what changed against this baseline: observations, source revisions, method changes, scenario updates and corrections.
Notes
Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references
- 3Microsoft (ed.), Helping our customers through the CrowdStrike outage (blog post of 20 July 2024; estimate of 8.5 million Windows devices, less than one percent of all Windows machines). Microsoft, Redmond. Observation year 2024. Accessed 2026-11-03.back
- 4Amazon Web Services (ed.), Summary of the Amazon DynamoDB service disruption in the Northern Virginia (US-EAST-1) Region, 19 to 20 October 2025 (post-event summary). Amazon Web Services, Seattle. Observation year 2025. Accessed 2026-11-03.back
- 5Cloudflare (ed.), Cloudflare outage on November 18, 2025 (incident report). Cloudflare, San Francisco. Observation year 2025. Accessed 2026-11-03.back
- 6CISA, NSA, FBI and partner agencies (eds.), Joint cybersecurity advisory AA24-038A on state-sponsored actor persistent access to critical infrastructure networks, 7 February 2024 (page text read to character 100,000 of 132,303). CISA, Arlington. Observation year 2024. Accessed 2026-11-03.back
- 7CISA and partner agencies (eds.), Joint cybersecurity advisory AA25-239A on state-sponsored actor compromise of networks worldwide, 27 August 2025 (revised 3 September 2025). CISA, Arlington. Observation year 2025. Accessed 2026-11-03.back
- 8National Cyber Security Centre (ed.), NCSC Annual Review 2025, incident management chapter and news item (period 1 September 2024 to 31 August 2025; 429 incidents; 204 nationally significant; 18 highly significant). NCSC, London. Observation year 2025. Accessed 2026-11-03.back
- 13Entrackr, UPI hits all-time high of 20.7 bn transactions in October (press report of NPCI data: 20.7 billion transactions, Rs 27.28 lakh crore, up 25% and 16% year on year); the NPCI statistics page returned no figures. Observation year 2025. Accessed 2026-11-03.back
- 14Agência Brasil, Pix bate recorde e supera 313 milhões de transações em um dia (press report of Banco Central do Brasil data: about 313.3 million transactions and R$ 179.9 billion on 5 December 2025; previous record 297.4 million on 28 November 2025); the central bank statistics page returned no figures. Observation year 2025. Accessed 2026-11-03.back
- 10ITU (ed.), Facts and Figures 2025 (press release of 17 November 2025: about 6 billion online, 2.2 billion offline; 94% and 23% by income group; 85% urban and 58% rural). International Telecommunication Union, Geneva. Observation year 2025. Accessed 2026-11-03.back
- 1ENISA (ed.), ENISA Threat Landscape 2025 (publication page; period 1 July 2024 to 30 June 2025; published 1 October 2025; 4,875 incidents; version 1.3 of 22 September 2026). European Union Agency for Cybersecurity, Athens. Observation year 2025. Accessed 2026-11-03.back
- 15e-Estonia (ed.), X-Road (programme page: 2.2 billion transactions a year; more than 3,800 e-services; outgoing data digitally signed and encrypted). e-Estonia, Tallinn. Observation year 2025. Accessed 2026-11-03.back
- 12World Bank (ed.), The Global Findex Database 2025 (publication page: 79% of adults globally have an account). World Bank, Washington. Observation year 2025. Accessed 2026-11-03.back
