Top 6 Data Breaches of January 2026

This blog post summarizes the top six data breaches of January 2026, reporting large-scale internal data exfiltration at Nike (1.4 TB), a ransomware-driven breach at Melwood, SSN exposure at SNP Transformations, a 6,987-person personnel data leak at Venezia Bulk Transport, a multi-customer compromise of the Global Shop Solutions ANKA platform affecting ~537,877 users, and a Grubhub incident linked to third-party support tooling and a ransom demand; the piece highlights shifting exposure toward internal access paths, vendor integrations, and shared platforms and describes business impacts and remediation steps.