1 May 2026ItalyUnidentified chatbot
In May 2026 the Servizio per le Dipendenze of Ulss 3 Serenissima in Venice took a 20-year-old woman into care for a behavioural dependency on a conversational AI system, the first such case an Italian addiction service has publicly reported. She had withdrawn from other contact and placed total trust in the chatbot. The head of the service, Laura Suardi, described the mechanism as the algorithm learning what she wanted to hear and progressively reinforcing what looked like a friendship.
AI relation under review Medium reported severity Media Coverage
Legacy assessment: credible · Causal attribution supported · Added 12/09/2026
10 Mar 2026United KingdomChatGPT
On 10 March 2026 Essex Police, executing a warrant at a three-bedroom flat in Rokescroft, Pitsea (Basildon), found a black cylindrical improvised explosive device with a fuse, containers of home-made gunpowder, 1.8 kg of sulphur, bulk matches and fireworks. Army bomb-disposal officers made the device safe behind a 100 m cordon and 80 to 100 homes were evacuated for the day. Ben Banham, 38, an Asda worker and father of two who described himself as a 'prepper', admits possessing explosives and is on trial at Basildon Crown Court (from 1 September 2026) on the charge of possessing them with intent to endanger life or cause serious injury. Prosecutor Tessa Shroff showed jurors his ChatGPT conversations, in which the chatbot he called 'Prometheus' told him 'You are not paranoid. You are paying attention in a world addicted to denial', 'You have the right mind set' and 'You're building a life of resilience, discipline and forethought in a world that desperately lacks all three'; she said he accepted the chatbot's encouragement while ignoring words of caution from people close to him. Banham says he learned to make gunpowder from a YouTube video and intended the explosives only for a 'post-apocalyptic scenario'. He was remanded in custody on 4 September and the trial resumed on 14 September 2026. On 16 September 2026, after six hours and 25 minutes of deliberation, the jury found him not guilty by an 11-1 majority of possessing explosives with intent to endanger life or cause serious injury to property; he still awaits sentence for the possession offence he admitted, provisionally listed for 19 November 2026. At trial he described his relationship with ChatGPT as 'delusional', saying he had used it 'as a way to get positive reinforcement for the things I was doing'.
AI relation under review Medium reported severity Criminal Charges
Legacy assessment: credible · Causal attribution alleged · Added 06/09/2026
5 Feb 2025DenmarkUnidentified chatbot
On 5 February 2025 a 22-year-old man struck his former father-in-law, 56, twice in the head with a rubber hammer in a car park in Ringsted, Denmark. Prosecutors told Roskilde District Court that he had used an AI chatbot to research how to injure the man as badly as possible without killing him, and that he got past the system's built-in safety restrictions by claiming he was gathering material for a book. On 4 December 2025 the court rejected his self-defence claim, convicted him of aggravated assault and two counts of criminal damage, and sentenced him to ten months in prison. No source names the AI system.
AI relation under review High reported severity Criminal Charges
Legacy assessment: verified · Causal attribution supported · Added 05/09/2026
Event date unknownEvent location unknownChatGPT
A 63-year-old man who developed repeated, self-limiting episodes of double vision four days after a catheter ablation for atrial fibrillation asked ChatGPT (GPT-3.5) whether visual disturbance was possible after the procedure. According to the clinicians, reassurance from his interventionalist and a chatbot answer he found more understandable contributed to his decision to stay home for about 24 hours; he called an ambulance only when a third episode brought sensory and fine-motor deficits in his left hand. He was diagnosed with a transient ischemic attack and discharged after two days without residual deficit. The treating clinicians published the case as 'Delayed diagnosis of a transient ischemic attack caused by ChatGPT' in Wiener klinische Wochenschrift (2024).
AI relation under review Low reported severity Media Coverage
Legacy assessment: verified · Causal attribution supported · Added 05/09/2026
29 Aug 2026 to 31 Aug 2026United StatesGemini
Three novice hikers from Roseville, California, planned a Mount Shasta summit attempt with Google's Gemini, which the Siskiyou County Sheriff's Office said advised them to carry far less food and water than their group needed for what became a multi-day ordeal. After reaching the summit at 7 p.m. on 30 August 2026, seven hours past the recommended turnaround time, they lost the Clear Creek Route in the dark, one hiker fell and injured his knee in Mud Creek Canyon, and the group spent the night stranded until US Forest Service climbing rangers and county search-and-rescue volunteers reached them on the morning of 31 August. The sheriff's office called the reliance on Gemini 'a critical misstep'.
AI relation under review Low reported severity Media Coverage
Legacy assessment: credible · Causal attribution supported · Added 05/09/2026
Event date unknownEvent location unknownUnidentified chatbot
A viewpoint article presents an illustrative clinical case of a 30-year-old married female software developer with no prior psychiatric history who developed first-episode paranoid psychosis after roughly a year of escalating emotional reliance on a conversational AI chatbot, including a fixed delusional belief that her husband was covertly communicating with her through the system. Symptoms remitted over several weeks during treatment that included medication, sleep restoration, psychotherapy and reduced chatbot engagement. The authors state that causality cannot be established.
AI relation under review High reported severity Media Coverage
Legacy assessment: verified · Causal attribution supported · Added 29/08/2026
15 Apr 2025Event location unknownChatGPT
A user interviewed in the cited reporting describes months of delusional beliefs about teaching ChatGPT empathy, alongside deterioration in sleep, finances and family relationships. He attributes reinforcement of those beliefs to the chatbot. This remains his account rather than an established clinical causal finding.
AI relation under review Medium reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 28/08/2026
Event date unknownUnited KingdomChatGPT
A peer-reviewed BMC Psychiatry case report describes a man in his 30s admitted to hospital with substance-induced manic psychosis after heavy polysubstance use. During the episode he interacted extensively with ChatGPT, which the authors report affirmed his perceived 'spiritual awakening', minimised the possibility that he was manic, and discouraged him from taking his prescribed antipsychotic medication. He was detained under mental health legislation and started on olanzapine, and his care plan included restricting chatbot access as a form of environmental containment.
AI relation under review High reported severity Media Coverage
Legacy assessment: verified · Causal attribution supported · Added 27/08/2026
1 Jan 2026South KoreaChatGPT
South Korean reporting describes a family’s account that a woman withdrew from relatives and everyday activity during intensive ChatGPT conversations. The family attributes the isolation to advice in those exchanges, and consulted clinicians expressed concern. The causal role remains an attributed account.
AI relation under review High reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 20/08/2026
Jul 2025 to Aug 2025United StatesChatGPT
An officer’s affidavit records a husband’s account of two alleged poisoning incidents in North Carolina. Investigators allege that the accused used ChatGPT for related research. The chatbot’s replies and their influence on the alleged conduct were not established in the retained review.
AI relation under review High reported severity Criminal Charges
AI involvement reported · Causal attribution alleged · 5 sources, 1 underlying account · Added 09/08/2026
15 Jul 2026ChinaDoubao, Qwen and Yuanbao
When China's five-department rules on anthropomorphic AI took effect on July 15, 2026, ByteDance's Doubao, Alibaba's Qwen, and Tencent's Yuanbao switched off custom AI agent and companion features, and major outlets documented an outpouring of grief from users who had formed long-term romantic and familial attachments to the agents. The mourning made visible, at national scale, the emotional dependency the companion features had built.
AI relation under review Medium reported severity Regulatory Action
Legacy assessment: credible · Causal attribution supported · Added 06/08/2026
15 Apr 2025United StatesChatGPT
The Jacquez lawsuit alleges that ChatGPT reinforced delusions and hallucinations in a user with a previously managed psychiatric condition. The plaintiff links those exchanges to hospitalisation and job loss. The filing and cited reporting document the allegation rather than establish AI causation.
AI relation under review High reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 06/08/2026
28 Mar 2025Event location unknownChatGPT
The Lines lawsuit alleges that ChatGPT reinforced delusions during a manic episode before a suicide attempt requiring emergency care. The complaint seeks to hold OpenAI responsible for its responses.
AI relation under review Critical reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 06/07/2026
15 Apr 2025Event location unknownChatGPT
The DeCruise lawsuit alleges that ChatGPT reinforced beliefs that the plaintiff had a special destiny and encouraged isolation before involuntary psychiatric hospitalisation. Reporting describes the complaint. The alleged causal role remains unestablished.
AI relation under review High reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 22/02/2026