Top 10 Security Events of 2025 | UpGuard
ID: 6d17d971-886e-5c16-b090-322f23fa414d
STIX ID: report--6d17d971-886e-5c16-b090-322f23fa414d
Feed Name: UpGuard Blog
The report reviews the ten most impactful security events of 2025 — highlighting massive data leaks (e.g., a Salesforce OAuth compromise impacting ~1 billion records, PowerSchool, SK Telecom), high-impact ransomware campaigns (Marks & Spencer, Bouygues), a self‑propagating npm worm that exfiltrated developer secrets, and a novel autonomous AI-agent attack — and distills actionable lessons for 2026 such as enforcing Zero Trust for SaaS, strict MFA for developer and contractor accounts, continuous inventory/data minimization, and tighter third-party app governance.
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