ESET APT Activity Report Q4 2025–Q1 2026

Key Takeaways

• ESET's APT Activity Report for Q4 2025 and Q1 2026 provides an overview of selected APT groups investigated by its researchers.
• The report highlights the activities and evolving tactics of major advanced persistent threat actors investigated by ESET researchers.
• Security teams should use the APT activity report to update threat intelligence and detection priorities for the coming months.