AI Security Threats 2026: Jailbreak Attacks, Data Poisoning, Prompt Injection—How Enterprises Can Defend Against New AI Risks

As AI systems are deployed at scale in enterprises, security attacks targeting AI are rapidly escalating. In 2026, jailbreak attacks have higher success rates, prompt injection hazards are expanding, and data poisoning cases during model fine-tuning are increasing. This article analyzes major AI security threat types and defense strategies for enterprises implementing AI.