Announcing Forrester’s Top Cybersecurity Threats For 2026

2026-06-10 · Source: Featured Blogs - Forrester · Field: Technology & Digital — Cybersecurity & Data Privacy, Artificial Intelligence & Machine Learning · Depth: Intermediate, quick

Summary

Forrester's "Top Cybersecurity Threats For 2026" report identifies AI innovation and escalating geopolitical tensions as primary forces reshaping the threat landscape, placing significant strain on CISOs. The report details the evolution of AI-driven threats, noting that in 2023, data integrity was a key concern with LLMs like ChatGPT. By 2024, the focus shifted to weaponized GenAI for narrative attacks, deepfakes, and prompt injection, alongside the emergence of AI software supply chain risks from open-source models. The 2025 iteration highlighted maturing deepfakes and new threats like GenAI-driven extortion. For 2026, the report outlines five critical risks: near-autonomous nation-state attacks using AI, personal agent threats creating shadow operators, non-negotiable AI software supply chain risks, provenance and IAM challenges for AI agents, and digital sovereignty leading to fragmented tech stacks. These threats necessitate new defensive strategies.

Key takeaway

For CISOs and security leaders preparing for 2026, you must proactively address the escalating risks from AI-driven and nation-state attacks. Inventory all AI components and agents, implementing agent-specific identity and access management to control shadow operations. Develop a dedicated AI supply chain playbook and stress test sovereignty-driven providers to mitigate fragmentation risks. Your current vulnerability management and IAM strategies will be insufficient against these rapidly evolving, autonomous threats.

Key insights

AI innovation and geopolitical tensions are rapidly transforming the cybersecurity threat landscape, demanding new defensive strategies.

Principles

• AI-driven threats evolve rapidly.
• Geopolitical tensions fuel cyberattacks.
• Digital sovereignty introduces new risks.

In practice

• Inventory AI agents and components.
• Implement agent-specific IAM.
• Stress test sovereignty-driven providers.

Topics

• Cybersecurity Threats 2026
• AI Security
• Nation-State Cyberattacks
• AI Supply Chain Risk
• Digital Sovereignty
• AI Agent Identity

Best for: CTO, VP of Engineering/Data, Director of AI/ML, AI Security Engineer, Security Engineer, Consultant

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Editorial summary, takeaway, and curation by AIssential. Original article published by Featured Blogs - Forrester.