Cyber Security Report 2025 H1

The 2025 H1 Security Status Report presents the analysis conducted by Telefónica Tech experts on the most relevant threats, vulnerabilities, and trends in Cyber Security during the first half of the year.

This analysis is based on internal data enriched with high-quality public sources, aiming to provide a clear, updated, and useful view of the risks faced by users, organizations, and critical sectors in the digital landscape.

The report is structured into seven key sections:

• Top Incidents: A compilation of the most impactful cyber incidents from January to June 2025, ranging from exploited vulnerabilities and malware campaigns to major data leaks.
• Mobile Security: Apple iOS and Android: Analysis of the latest OS versions, their vulnerabilities, new security features, and user adoption trends.
• Notable Vulnerabilities: Identification of the most critical CVEs reported this semester, with context, severity, and affected technologies.
• APT Operations, Organized Groups & Associated Malware: Tracking activities of groups such as Lazarus, APT28, and Mythic Leopard, including campaigns and advanced tactics.
• OT Threat Analysis: Overview of the threat landscape in industrial environments using Aristeo's OT honeypot system, highlighting attack patterns and origin.
• Threats by Indicator: Detection trends and top TTPs (Tactics, Techniques and Procedures) used by adversaries.
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• Conclusions: Key takeaways and actionable recommendations to enhance security posture in the months ahead.

Each section includes key findings, graphs, and reference links. The report is intended as a practical tool for Cyber Security professionals, tech leaders, policy makers, and anyone interested in understanding and anticipating digital threats.

✅ Download the full report for an in-depth view of Cyber Security trends and risks in early 2025.