Home / Incidents / Data breach
Lee Enterprises ransomware exposes 40,000 SSNs
A Qilin attack disrupted the newspaper group's publishing and exposed Social Security numbers.
- Organisation
- Lee Enterprises
- Disclosed
- 4 June 2025
- Affected
- 40,000
- Data
- Social Security numbers
- Attacker
- Qilin
- Severity
- major
- Region
- Global
- Source
- CM Alliance monthly roundup ↗
Cite this
Nuffield Consulting, “Lee Enterprises ransomware exposes 40,000 SSNs”, The Daily Tech Wire outage & breach log, 4 Jun 2025. https://techwire.nuffieldconsulting.com/incidents/2025-06-04-lee-enterprises-breach/ (retrieved 15 Nov 2026).
This entry summarises public reporting. Please also cite the original source: CM Alliance monthly roundup, https://www.cm-alliance.com/cybersecurity-blog/major-cyber-attacks-ransomware-attacks-and-data-breaches-of-june-2025.
Related incidents
- 3 Feb 2025Lee newspapers disrupted by cyber attackLee Enterprises · outage · Cyberattack
- 26 Jun 2025Ahold Delhaize ransomware breach affects 2.2 millionAhold Delhaize · breach · INC Ransom · 2.2M records
- 17 Jun 2025Episource breach exposes 5.4 million patientsEpisource · breach · Unknown · 5.4M records
- 12 Jun 2025Aflac breach later put at 22.7 million customersAflac · breach · Scattered Spider · 22.7M records
- 22 Jun 2025McLaren Health Care notifies 743,000 patientsMcLaren Health Care · breach · INC-linked · 743K records