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As businesses enter a critical period of year-end financial closing and operational pressures, Ramsey Theory Group has issued its December 2025 Cybersecurity Threat Forecast. The report highlights a threat landscape evolving with unprecedented speed due to adversarial AI, complex supply chains, and geopolitical tensions. CEO Dan Herbatschek has identified three primary cyber risks that enterprises must prepare for, marking a shift towards fully automated and adaptive attacks that exploit the unique vulnerabilities of the holiday season.
Ramsey Theory Group forecasts three major cyber threats for December 2025.
Fully autonomous AI-driven intrusion campaigns can operate without human oversight.
Deepfake Business Email Compromise 2.0 uses synthetic CFOs for payment fraud.
Third-party SaaS and AI supply-chain compromises target trusted vendor integrations.
These threats exploit year-end pressures like financial closings and new deployments.
The only viable defense is governed, autonomous AI security systems.
December 2025 is expected to mark a major escalation with the widespread deployment of agentic AI systems by threat actors. These fully autonomous AI-driven intrusion campaigns can execute multi-step operations—including reconnaissance, privilege escalation, and data exfiltration—at machine speed without human intervention. Emerging patterns include AI agents chaining zero-day exploits, self-healing malware that rewrites its own code, and multi-vector attacks that change strategy mid-operation.
The traditional peak season for financial fraud is evolving into a far more sophisticated threat. Holiday-season Business Email Compromise is advancing to a new level, leveraging real-time voice cloning and synthetic video to create perfect digital replicas of executives. Attackers are predicted to use deepfake CFO approvals during financial closings, AI-generated urgent payment requests, and even synthetic video calls in live meetings to authorize fraudulent transactions, exploiting the high-pressure, high-stakes environment.
As companies push end-of-year software updates and new AI model deployments, attackers will increasingly target the weakest links: trusted third-party vendors and integrations. The top supply-chain risks include compromised AI model updates, exploits delivered through SaaS plugins, and lateral intrusion propagated through identity providers. The greatest risk will come from the software and AI agents embedded within enterprise workflows that organizations rely on most.
"The age of human-operated cyberattacks is ending," said Herbatschek. "December will bring a wave of fully autonomous offensive AI—forcing enterprises to deploy governed defensive AI at the same scale."
"December is when companies move fast, close books, and process large payments," Herbatschek noted. "This year, attackers will exploit those pressures with AI-generated executive identities indistinguishable from the real thing."
The forecast for December 2025 underscores a critical inflection point in cybersecurity. The escalating use of offensive AI by threat actors necessitates an equally advanced response, making AI-governed, autonomous defense systems not just an advantage but a fundamental requirement for enterprise resilience heading into 2026.
About Ramsey Theory Group
Lead by tech CEO and applied mathematician Dan Herbatschek, New York-based Ramsey Theory Group, with offices in New Jersey and Los Angeles, is a global leader in AI governance, cybersecurity assurance, and digital modernization. Through its platforms such as Erdos Technologies, Erdos Tracks, Erdos Medical, and Eunifi, the company helps organizations adopt high-assurance AI systems that strengthen security, increase operational efficiency, and accelerate digital transformation across industries including retail automotive, healthcare, logistics, construction, and financial services.
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