AI-Powered Breaches Surge: Experian Reports 40% of 2025 Incidents Were AI-Driven, Warns Agentic AI Will Dominate in 2026

The Rising Tide of Artificial Intelligence in Cyberattacks

In a startling revelation that underscores the rapidly evolving threat landscape, credit reporting giant Experian has reported that 40% of the 5,000 data breaches it serviced in 2025 were powered by artificial intelligence. The company further predicts that by 2026, so-called agentic AI—autonomous systems capable of independent decision-making—will become the primary driver of data breaches worldwide. This shift marks a fundamental change in how cybercriminals operate, moving from manual, human-led attacks to scalable, machine-driven campaigns.

A Landmark Year: 5,000 Breaches and the AI Factor

Experian, one of the three major credit bureaus in the United States, operates a dedicated breach response unit that assists organizations and consumers after a data compromise. In 2025 alone, the company handled 5,000 breach incidents. What stands out is that nearly half of these—specifically 40%—involved AI in some capacity. These AI-powered breaches range from sophisticated phishing campaigns that use natural language generation to craft convincing emails, to automated vulnerability scanning and exploitation tools that adapt in real time.

How AI Amplifies Breach Impact

Traditional cyberattacks often require significant human effort: researching targets, writing malware, and manually launching exploits. AI changes the equation by automating these steps. For example, generative AI can produce thousands of unique, context-aware phishing messages tailored to each recipient, dramatically increasing the success rate. Similarly, AI-powered bots can probe networks faster than any human team, identifying weak points and deploying malware within minutes. The result is a higher volume of breaches, with attackers able to target multiple organizations simultaneously.

The Agentic AI Threat: What to Expect in 2026

Looking ahead, Experian’s analysts are particularly concerned about the emergence of agentic AI. Unlike today’s AI tools that require human prompts and oversight, agentic AI systems can set their own goals, plan multi-step attack sequences, and adapt their tactics based on defensive responses. Essentially, they act as autonomous hackers. Experian predicts that by 2026, agentic AI will become the leading cause of data breaches, overtaking human-operated attacks and even current AI-assisted techniques.

Why Agentic AI Is a Game Changer

The autonomy of agentic AI introduces new risks. For example, such a system could independently decide to pivot from a failed phishing attempt to a brute-force attack, or to exfiltrate data in a novel way to avoid detection. It could also operate on a much larger scale, simultaneously breaching hundreds or thousands of organizations. The speed and adaptability of agentic AI will challenge traditional security measures, which rely on static signatures and known patterns of attack.

Preparing for an AI-Driven Threat Landscape

Experian’s data underscores an urgent need for organizations to reassess their cybersecurity strategies. Defenders must also embrace AI—using machine learning to detect anomalies, block malicious activities, and predict attack patterns. However, as agentic AI evolves, even advanced defenses may struggle. The key will be developing adaptive, AI-driven security systems that can counter autonomous attackers in real time.

Steps Organizations Can Take

1. Invest in AI-driven defense tools. Use machine learning-based intrusion detection and response systems that can identify zero-day exploits and unusual behavior.
2. Implement zero-trust architectures. Assume that breaches may already have occurred; verify every access request, even from internal users.
3. Regularly test with simulated attacks. Use AI-powered red teams to mimic the tactics of autonomous attackers and find weaknesses before they are exploited.
4. Enhance employee training. Even the best AI defenses can be undone by human error. Train staff to recognize AI-generated phishing attempts and to follow proper data handling protocols.
5. Collaborate and share threat intelligence. Join industry information-sharing groups to stay ahead of new AI-based attack methodologies.

The New Reality

The statistics from Experian paint a clear picture: AI is no longer just a tool for defenders—it is a weapon wielded by attackers with increasing sophistication. The 40% share of AI-powered breaches in 2025 is likely to grow as agentic AI matures. Organizations that fail to adapt may find themselves overwhelmed by a new breed of cyber criminal: one that never sleeps, learns from every encounter, and operates at machine speed.

As we move into 2026, the focus must shift from merely responding to breaches to anticipating them. Just as AI creates new vulnerabilities, it also offers solutions—but only if we act now. Back to top