Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Security teams are facing an attack surface that changes faster than it can be fully understood. Cloud adoption, Software-as-a-Service sprawl, and continuous delivery cycles have dissolved the traditional perimeter, replacing it with an environment where assets change with little notice. Shadow IT, abandoned infrastructure, expired certificates, and misconfigured services quietly expand exposure, often outside formal ownership.

Zero-day exploits were among the defining cyber threats of 2025, with high-severity flaws affecting platforms such as React2Shell, Oracle E-Business Suite (EBS), and CitrixBleed 2 highlighting how quickly zero-days can be weaponized and how damaging they can be. To help organizations understand the zero-day threat landscape, Outpost24’s threat intelligence team has compiled a review of the vulnerabilities they encountered in the wild throughout 2025.

Payment Card Industry Data Security Standard (PCI DSS) compliance isn’t a once-a-year exercise; it’s a year-round effort that requires regular validation to protect cardholder data, manage risk, and maintain audit readiness throughout the year. Compliance failures are rarely caused by a single missing control.

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.

700Credit, a US-based credit check and compliance provider, disclosed in late October that it had suffered a significant data breach affecting nearly 18,000 dealerships and more than 5.6 million consumers. According to the company’s disclosure and subsequent reporting, the exposed data includes names, addresses, dates of birth, and Social Security numbers.

React2Shell is the name commonly used to describe a set of critical vulnerabilities affecting React Server Components (RSC) and frameworks that rely on them, including Next.js. Since disclosure, security teams have observed continued exploitation attempts targeting exposed applications, with attackers abusing the vulnerability to gain unauthorized code execution on affected servers.

The strategic acquisition strengthens market leadership by unifying user identity with device trust, eliminating security blind spots. STOCKHOLM / PHILADELPHIA (December 9, 2025) – Outpost24, a leader in exposure management and identity security, today announced the acquisition of Infinipoint, a specialist in device identity, posture validation, and secure workforce access.