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In 2026, describing ransomware as simply malware that encrypts files is an oversimplification. Today, attacks involve identities, infrastructure, data, people, suppliers, and operational continuity. They can begin with a stolen credential or known vulnerabilities, remain undetected for days, and evolve into a multi-layered extortion scheme.
That’s why companies must prepare for five main scenarios: compromise of exposed devices, abuse of valid identities, phishing and infostealers, supply chain attacks, and campaigns accelerated by Artificial Intelligence.
Why is ransomware a systemic risk?
The most significant change in ransomware in 2026 concerns its operational model, not just the number of attacks. Criminal groups purchase pre-existing access, exploit compromised infrastructure, and use legitimate administrative tools. They then choose the most effective leverage against each individual victim, ranging from production shutdowns to data leaks.
The ransomware risk increasingly stems from the connections between what happens inside and outside the organization. The Cyberoo 2026 Observatory identified in 2025 320 new threat actors, 38,654 suspicious domains, and over 2,700 unique vulnerabilities associated with the monitored vendors. Exposed identities, out-of-date devices, malware delivered via email, and vulnerable software on endpoints remain recurring entry points. The most insidious threat, therefore, is not necessarily a zero-day exploit, but a known indicator that remains isolated, uncorrelated, and without a timely response.
1. Out-of-date edge devices: the gateway that remains open
Edge devices are a particularly exposed entry point for ransomware attacks. VPNs, firewalls, gateways, and remote access services are accessible from the Internet, often serve as the central point of access to multiple environments, and are not always updated as quickly as endpoints. A known, unpatched vulnerability can therefore remain exploitable for months, even after the vendor has released a patch.
The damage increases when the attacker manages to move from the exposed device to the rest of the network. From that point on, the attacker attempts to steal credentials, elevate privileges, bypass controls, and reach servers, hypervisors, backup systems, and—where present—OT environments. In the manufacturing sector, for example, the impact is not limited to encrypted data: it includes lost production hours and the often complex recovery of legacy industrial systems.
Defense begins with a true understanding of the attack surface and prioritizing vulnerabilities that threaten the most critical assets. Patching remains essential, but it does not automatically resolve the incident. If the system may have been compromised before the update, it is necessary to look for indicators of compromise and verify accounts, configurations, sessions, and other possible persistence mechanisms.
2. Stolen Credentials and Sessions
A ransomware attack can begin without immediately installing any malware in the corporate environment. Passwords, session cookies, and access tokens stolen via infostealers, phishing, or previous data breaches can allow the attacker to access cloud services, VPNs, and collaboration tools as if they were a legitimate user. For this reason, controls based solely on malware signatures and technical indicators may fail to detect the intrusion.
Identity is now one of the primary perimeters that must be protected. MFA remains essential, but methods based on SMS, one-time codes, or push approvals can be circumvented through phishing, man-in-the-middle attacks, or MFA fatigue. Protection requires phishing-resistant authentication, least privilege, and a combined analysis of identity, device, location, time, and behavior.
Exposed credentials must be identified before they become a point of initial access. Monitoring surface, deep web, and dark web sources can reveal compromised passwords, accounts, and datasets, while stolen tokens and sessions primarily require identity checks and access telemetry. Session revocation, credential rotation, and continuous behavioral analysis help detect anomalous usage even after successful authentication.
3. Phishing, Infostealers, and Legitimate Tools
Phishing and infostealers remain effective because they can produce credible and low-profile access. Generative AI facilitates the creation and targeting of more plausible messages, while infostealers collect credentials, cookies, tokens, and information about the compromised device. After initial access, attackers can use PowerShell, RMM tools, and utilities already present in the environment for reconnaissance, persistence, and exfiltration.
The use of legitimate tools makes the attack chain difficult to distinguish from normal IT activities. In living off the land, blocking a single executable is not enough: the meaning emerges from the context—that is, from who launched the command, on which host, following which authentication, and with which subsequent connections.
The correlation between email, endpoints, identities, the network, and the cloud makes it possible to reconstruct the attack sequence. When viewed separately, many indicators appear normal; when analyzed together and in the right context, they help analysts recognize reconnaissance, persistence, and lateral movement before the attack reaches critical systems.
4. Supply Chain and Multi-Victim Extortion
The supply chain multiplies the impact of a ransomware attack because it links a single compromise to multiple organizations. An IT vendor, an MSP, a SaaS platform, or a shared component can turn a privileged account or vulnerable software into distributed access along existing trust relationships.
Restoring systems does not necessarily end the extortion. Encryption is accompanied by data theft and the threat of data publication; in what is commonly referred to as “triple extortion,” attackers add an additional lever of pressure, for example by contacting customers, partners, or suppliers, or by launching a DDoS attack. The terminology does not identify a single sequence of events but describes the extension of extortion beyond the direct victim. A functioning backup remains essential, but it does not neutralize these risks on its own.
Risk management must therefore include vendors, partners, and cloud services, not stop at the corporate perimeter. Third-party access must be segmented and restricted, while responsibilities and notification timelines must be defined before an incident occurs. The response must also involve security, IT, legal, privacy, communications, and operational continuity teams, because ransomware is never just a technical problem.
5. AI-Powered Ransomware: The Kill Chain Accelerates
By 2026, AI can accelerate various phases of ransomware campaigns. Generative models can support reconnaissance, social engineering, content translation and adaptation, analysis of stolen data, and code development or modification. The result is primarily a reduction in costs and operational time, with the ability to conduct more targeted activities on a larger scale.
Enterprise AI agents expand the scope of non-human identities and permissions that need to be governed. When they access documents, email, workflows, tools, or APIs, excessive privileges or weak configurations can amplify an error or a compromise. It therefore becomes essential to assign a distinguishable identity to each agent, limit permissions, and log the actions performed.
AI governance requires an inventory of agents, models, connectors, service accounts, and associated credentials. For each component, it is necessary to know which data is accessible, which tools can be invoked, which actions are permitted, and what actual privileges are granted. Automation strengthens defenses only when the principles of least privilege, separation of duties, traceability, and human oversight proportional to the impact of operations are applied.
How to Prepare for the Five Ransomware Scenarios
Preparing for these scenarios means, first and foremost, knowing what needs to be protected: assets, identities, data, exposed services, and external dependencies. From this foundation, it becomes possible to anticipate threats through Cyber Threat Intelligence, distinguishing those that can have a tangible impact on the organization, and to correlate signals from endpoints, the network, the cloud, identities, and the external ecosystem, preventing them from remaining isolated alerts.
This same approach enables you to protect the attack surface through prioritized patching, least privilege, segmentation, and immutable backups, as well as to respond with continuous monitoring, specialized expertise, and proven playbooks. In this process, the I-SOC and a team of analysts available 24/7 enable constant surveillance, in-depth analysis of relevant indicators, and support for containment when the timing and quality of the response are critical.
Ultimately, all of this requires governing risk by linking security, compliance, people, and business continuity into a single decision-making process. It is within this framework that the four areas of Cyberoo’s Orbis model take on concrete meaning: Threat Management enables an understanding of exposure and threats; Processes and Governance transform information into shared responsibilities, priorities, and procedures; Compliance integrates evidence retention and notification obligations into incident management; and People Security addresses both employee awareness and the protection of identities and privileges. Integrating these dimensions makes it possible to move beyond a defense based on isolated controls and build a coherent capability to prevent, detect, and contain ransomware before it compromises business continuity.
From Ransomware to Cyber Resilience
Ransomware becomes a systemic risk when it exploits the points of contact between technologies, identities, people, processes, and suppliers. It is within these interdependencies that an initial breach can escalate into data exfiltration, lateral movement, and operational disruption. A new tool may strengthen a single defense, but it does not solve the problem if data, responsibilities, and response capabilities remain fragmented.
Systemic cybersecurity connects threat management, processes and governance, compliance, and people security into a single, actionable view of risk. In the Cyberoo model, Orbis integrates technology, intelligence, and human expertise to understand exposure, anticipate threats, and transform critical indicators into concrete actions. The goal is not to promise zero risk, but to prevent an ignored indicator from becoming an incident capable of bringing business to a halt.
Sources
- Cyberoo, Cyberoo Observatory 2026: Inside the Dark Matter of Cyberspace, 2026.
- ENISA, ENISA Threat Landscape 2026, 2026.
- CISA, #StopRansomware Guide and ransomware advisories, accessed in 2026.
- NIST NCCoE, Accelerating the Adoption of Software and Artificial Intelligence Agent Identity and Authorization, 2026.
- National Cybersecurity Agency, NIS Guidelines on the Cybersecurity Incident Management Process, 2025.