[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fSwV9nXpiVwIBSEaYRuDH-MeDskox5Du9mN0XVAlvbM8":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"status":25,"created_at":26,"published_at":27,"article":28,"tags":32,"podcasts":51},"f207767d-be94-47a5-bcd3-9c54feeb03cb","outdated-systems-at-processor-cause-25m-person-greek-data-breach","5f95fd83-8e4a-4919-87e6-e97e80ef9f79","Outdated Systems at Processor Cause 2.5M-Person Greek Data Breach","The breach affecting approximately 2.5 million individuals stemmed from outdated information systems and inadequate security controls at the data processor's end, highlighting the critical importance of maintaining up-to-date infrastructure regardless of organizational type. The HDPA's decision to fine both the controller (Ministry of Social Cohesion and Family) and the processor underscores that GDPR accountability flows through the entire data processing chain. Public-sector organizations cannot rely on resource constraints or public interest mandates as defenses against GDPR security obligations. This case demonstrates that failure to enforce security standards on third-party processors carries significant financial and reputational consequences for the data controller as well.","**Immediate actions:**\n- Conduct an emergency audit of all processor-held systems to identify outdated software, operating systems, or infrastructure components.\n- Invoke contractual rights under data processing agreements to demand evidence of patching and remediation from processors.\n- Notify the relevant supervisory authority if a reportable breach has not already been disclosed within the 72-hour GDPR window.\n\n**Long-term improvements:**\n- Embed mandatory security baseline requirements (including patch currency standards) into all Data Processing Agreements (DPAs) with third-party vendors.\n- Establish a formal Vendor Risk Management programme that includes periodic security assessments and audit rights for all processors handling personal data at scale.\n- Implement a technology refresh lifecycle policy that prevents critical systems from operating beyond a defined end-of-support threshold.\n\n**Detection & compliance measures:**\n- Deploy continuous vulnerability scanning across all environments, including processor-managed systems where contractually permitted, to detect unpatched components early.\n- Require processors to provide regular compliance evidence (e.g., penetration test results, patch status reports) mapped to GDPR Article 28 obligations.\n- Establish a Data Protection Impact Assessment (DPIA) trigger for any processing activity involving over 100,000 individuals to proactively identify and mitigate systemic risks.",[12,13,14,15,16,17,18,19,20,21,22,23,24],"GDPR Article 5(1)(f) – Integrity and Confidentiality principle","GDPR Article 25 – Data Protection by Design and by Default","GDPR Article 28 – Processor obligations and contractual requirements","GDPR Article 32 – Security of processing","GDPR Article 33 – Notification of a breach to supervisory authority","NIST SP 800-53 SI-2 (Flaw Remediation)","NIST SP 800-53 SA-9 (External Information System Services)","NIST SP 800-53 RA-5 (Vulnerability Monitoring and Scanning)","CIS Control 7 – Continuous Vulnerability Management","CIS Control 15 – Service Provider Management","ISO\u002FIEC 27001:2022 Annex A 8.8 – Management of technical vulnerabilities","ISO\u002FIEC 27001:2022 Annex A 5.19 – Information security in supplier relationships","ITIL 4 – Supplier Management Practice","published","2026-09-03T14:21:15.485513+00:00","2026-09-03T14:21:15.387+00:00",{"id":7,"url":29,"slug":30,"title":31},"https:\u002F\u002Fgdprhub.eu\u002Findex.php?title=HDPA_(Greece)_-_15\u002F2026&diff=52911&oldid=0","hdpa-greece-15-2026-b2d1ce","HDPA (Greece) - 15\u002F2026",[33,39,45],{"id":34,"name":35,"slug":36,"description":37,"color":38},"af7fce9e-1ce8-4156-93bc-09dcfbfdf29d","Patch Management","patch-management","Unpatched vulnerabilities, delayed updates","#ef4444",{"id":40,"name":41,"slug":42,"description":43,"color":44},"c0dcc566-3654-4d70-8ede-262a198e732f","Regulatory Compliance","regulatory-compliance","GDPR, NIS2, DORA, sector-specific violations","#ec4899",{"id":46,"name":47,"slug":48,"description":49,"color":50},"c8b843a5-d5a7-41d1-8d3b-cabded09d2ef","Data Protection","data-protection","Unencrypted data, missing DLP, poor classification","#3b82f6",[]]