Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

As a threat intelligence team, our job is to separate noise from persistence in the cybersecurity threat landscape. In this article, we assess the threats most likely to remain and evolve through 2026 based on the threat actors, campaigns, and malware we have tracked and researched during the last year. Our work centers on tracking adversaries with a strong footprint in the underground ecosystem: forums, Telegram channels, data leak sites, and marketplaces where cybercriminals operate.

Following the recent cyberattack on Endesa, one of Spain’s largest electricity and gas providers, Outpost24’s threat intelligence team has compiled a comprehensive analysis of the incident based on publicly available evidence from underground forums, leaked dataset listings, and the threat actor’s own statements.

In 2026, organizations are already managing attack surfaces that are larger, more fragmented, and more volatile than in previous years. As the year progresses, attack surfaces will continue to expand in scope and complexity, making them harder to secure consistently.

In 2025, KrakenLabs tracked a series of shifts that reshaped how cyber threats materialized across organizations. Drawing on research conducted throughout the year, this article highlights the most consequential developments observed by KrakenLabs in 2025, where attacker success depended less on new tools or novel exploits and more on the large-scale exploitation of people, identity, and trusted access.