Home / Monthly reports / March 2026
Outages & Breaches: March 2026 in numbers
2 significant outages (1 critical) and 7 data breaches (4 critical) were logged in March 2026. The largest breach by records was Cognizant TriZetto (3.4M). The longest outage with a known duration was Azure OpenAI (GPT-5.2) (20.2 hours). The most common outage cause was configuration change (1 of 2).
Outages2▼ 4 vs February
Critical outages1wide impact
Downtime tracked20 hacross 1 outage with a known duration
Breaches7same as February
Critical breaches4sensitive data at scale
Records exposed8Mconfirmed or company-reported
Outage causes
Named attackers
Most significant incidents
- 19 Mar 2026Exposed API leaks 2.7 million people's benefits dataNavia Benefit Solutions · breach · Unknown · 2.7M records
- 12 Mar 2026Telus Digital confirms breach after 1PB theft claimTelus Digital · breach · ShinyHunters
- 6 Mar 2026TriZetto breach exposes 3.4 million patientsCognizant TriZetto · breach · Unknown · 3.4M records
- 4 Mar 2026Ransomware exposes 1.2 million in cancer research dataUniversity of Hawaiʻi Cancer Center · breach · Unknown · 1.2M records
- 1 Mar 2026Drone strikes knock out AWS UAE and Bahrain regionsAWS Middle East (UAE, Bahrain) · outage · Physical damage / conflict
- 18 Mar 2026Marquis attack exposes 672,000 bank and credit union customersMarquis Software · breach · Unknown · 672K records
- 11 Mar 2026Michelin files leaked after Oracle EBS breachMichelin · breach · Clop
- 9 Mar 2026Azure OpenAI GPT-5.2 down for 20 hoursAzure OpenAI (GPT-5.2) · outage · Configuration change · 20.2 hours
All 2 outages
- 9 Mar 2026Azure OpenAI GPT-5.2 down for 20 hoursAzure OpenAI (GPT-5.2) · outage · Configuration change · 20.2 hours
- 1 Mar 2026Drone strikes knock out AWS UAE and Bahrain regionsAWS Middle East (UAE, Bahrain) · outage · Physical damage / conflict
All 7 data breaches
- 19 Mar 2026Exposed API leaks 2.7 million people's benefits dataNavia Benefit Solutions · breach · Unknown · 2.7M records
- 18 Mar 2026Marquis attack exposes 672,000 bank and credit union customersMarquis Software · breach · Unknown · 672K records
- 12 Mar 2026Telus Digital confirms breach after 1PB theft claimTelus Digital · breach · ShinyHunters
- 11 Mar 2026Michelin files leaked after Oracle EBS breachMichelin · breach · Clop
- 6 Mar 2026TriZetto breach exposes 3.4 million patientsCognizant TriZetto · breach · Unknown · 3.4M records
- 4 Mar 2026Ransomware exposes 1.2 million in cancer research dataUniversity of Hawaiʻi Cancer Center · breach · Unknown · 1.2M records
- 4 Mar 2026LexisNexis says hackers took mostly legacy dataLexisNexis · breach · FulcrumSec
2026 year to date
Incidents YTD32January to March 2026
Outages YTD11significant outages
Breaches YTD21data breaches
Critical YTD15outages and breaches
Records exposed YTD108Mconfirmed or company-reported
| Month | Outages | Breaches | Critical | Running total |
|---|---|---|---|---|
| Jan | 3 | 7 | 5 | 10 |
| Feb | 6 | 7 | 5 | 23 |
| Mar | 2 | 7 | 5 | 32 |
| Total | 11 | 21 | 15 | 32 |
Cite this
Nuffield Consulting, “Outages & Breaches: March 2026 in numbers”, The Daily Tech Wire,published March 2026. https://techwire.nuffieldconsulting.com/reports/2026-03/ (retrieved 15 Nov 2026).
The underlying data for every month is in the CSV download.