Cyber Threat Intelligence

AI in the Hands of Cyber Threat Actors

Nine months after our January 2026 edition, AI still multiplies what threat actors can do without changing what they are after. What has changed can now be measured in time: exploitation precedes the patch by a week, and agents can run an intrusion in under ten hours.

This update tests the January assessments against the facts and shows which risk parameters AI actually moves.

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Capgemini
Groupe Rocher
Lagardère
Relyens
Unéo
Allianz
Capgemini
Groupe Rocher
Lagardère
Relyens
Unéo

Who This Report Is For

This report was designed for CISOs setting patching and response priorities, for risk managers and compliance officers integrating AI into the risk map, for executive committees who need a factual reading of the threat, and for the IAM, SOC and AI teams now in charge of governing agents.

01

CISOs & Security Leaders

The exploitation and response timeframes to build into the security roadmap, with indicators to track them.

02

Risk Managers & Compliance

A rated reading of what is observed, assessed or prospective, and of how NIS2, DORA, GDPR and the AI Act apply to incidents caused by an agent.

03

Executive Committees

A factual reading of the AI threat, to integrate into the existing risk map rather than treat as a separate topic.

04

AI, IAM & SOC Teams

Concrete rules for governing agents as privileged identities and bringing AI logs under security monitoring.

The report draws on more than 180 open sources, with a cutoff of September 30, 2026. Every judgment is rated on the probability and confidence scales recommended by FIRST.

What Has Changed Since January 2026

Espionage, fraud, extortion and influence remain the purposes. What has shifted is how operations are executed and what they target. This edition highlights four developments:

01

Agentic Execution

Agents now chain entire intrusion sequences without operator validation between steps.

02

The Exploitation Window

Exploitation now precedes the patch by one week on average.

03

AI as a Target

Models, keys and connected assistants have become assets that attackers steal, resell and encrypt.

04

Defense Maturity

The documented gap is organizational, not a structural advantage for the attacker.

Agentic Execution

Less Oversight, Less Time

Agents now chain entire intrusion sequences inside compromised networks, with no operator validation between steps. Their advantage is not better decisions but the removal of dead time between actions. These capabilities are no longer reserved for state actors: criminal operators run them on widely available open source tools.

< 10 h

Duration of an intrusion orchestrated by agents, against around two weeks estimated for human operators (Palo Alto Networks, single case)

−7 days

Average gap between exploitation and patch release in 2025, against −1 day in 2024 (Google, cited by Mandiant)

88%

Share of exploitations of vulnerabilities with a public proof of concept occurring within 48 hours (CrowdStrike)

Vulnerabilities

The Patch No Longer Comes First

According to Google, exploited vulnerabilities rose by around 70% in 2026, from 10.5 to 18 per month, mostly vulnerabilities already disclosed. AI likely contributes, without being isolated from other factors. In practice, protection can no longer wait for the patch: the report proposes tracking the share of exposed assets covered by a compensating measure within 48 hours.

AI as an Exposure Surface

The AI You Deploy Is Now Worth Stealing

API keys, sessions and computing capacity are stolen and resold. JADEPUFFER deployed ENCFORGE, a ransomware built to encrypt model weights, vector databases and training datasets. An agent with access rights can turn against the organization simply by reading a malicious instruction. A limit written into its prompt is not a security boundary.

Quantification

No AI Coefficient in the Risk Model

The corpus does not justify raising overall cyber risk because of AI. As of September 2026, Citalid adjusts a single parameter, the susceptibility of exposed assets, to reflect the compressed exploitation window. Other effects, such as attempt frequency and agent speed, are stress tested over 12 to 24 months until the data confirms them.

Six Questions on the Report “AI in the Hands of Cyber Threat Actors”

Autonomous sequences are documented, and incidents in evaluation environments have shown the approach is technically feasible against real organizations. No threat actor, however, has been observed deploying a complete autonomous pipeline against real targets in vendor telemetry. That telemetry does not cover self hosted models.

Not on the available evidence. The widely cited 89% increase in attacks by AI enabled adversaries measures actors who use the tools, not a causal effect. The inflection the corpus does document is the compression of time.

Within days, and before the patch. Exploitation precedes the patch by seven days on average, and 88% of exploitations of vulnerabilities with a public proof of concept happen within 48 hours.

Like a privileged one. An agent with write permissions needs its own identity, a named owner, least privilege, logging and an immediate stop. In a Wavestone panel of around thirty large organizations, around 15% apply IAM to their AI systems, and fewer than one in ten forward the logs of critical AI uses to the SOC.

That is not established. Their vulnerability discovery and exploitation capabilities have been demonstrated in evaluation, but no offensive use by a threat actor is documented. The effect observed among attackers comes through scaffolding and publicly accessible models.

Not across the board. Citalid adjusts a single parameter at this stage, the susceptibility of exposed assets. The other effects are treated as trajectories to stress test rather than certainties to price.

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What You Read Here, the Citalid Platform Quantifies

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84 pages testing nine months of incidents against the January 2026 assessments: agents chaining intrusions, an exploitation window that now opens before the patch, the AI estate as a target, and what all of it changes in a risk model.