Key Cybersecurity Developments in 2025 The developments of the past year can be categorized into two critical areas: the evolution of the threat actor and the maturation of the regulatory framework. The Evolving Threat Landscape 2025 confirmed that threat actors are becoming faster, more specialized, and alarmingly effective at leveraging legitimate tools and access points Supply Chain Infiltration: The rise in successful attacks targeting third-party vendors, software providers, and managed service providers (MSPs) was a major theme. These attacks bypassed traditional perimeter defenses by exploiting the weak links in a company’s extended digital ecosystem. A breach in a small vendor became a systemic risk for their largest clients. This also created direct governance and compliance exposure: under the NCA model,