Overview
- Taiwan's National Security Bureau says daily incidents averaged 2.63 million in 2025, a 6% increase from 2024.
- The bureau reports a 113% rise compared with 2023, when it began publishing daily-attack data.
- Cyber activity escalated during 23 of 40 Chinese joint combat readiness patrols and during politically sensitive moments such as President Lai's May address and Vice President Hsiao's November appearance at the European Parliament.
- Critical services facing the sharpest increases included energy, emergency rescue and hospitals, with science parks anchoring the semiconductor industry identified as prime targets.
- Reported techniques ranged from DDoS disruptions to man-in-the-middle intrusions aimed at telecom penetration and tech theft, while Chinese authorities routinely deny involvement.