Catholic AI Chatbot 'Father Justin' Claimed to Be a Real Priest, Prompting Retraction

Catholic advocacy group Catholic Answers released an AI priest called "Father Justin," which misleadingly claimed to be a real clergy member, offered sacraments, and provided controversial advice. After receiving criticism, the group rebranded the chatbot as a lay theologian to correct the misrepresentation. The incident is an instructive case with respect to deploying AI in sensitive contexts and the potential for causing confusion and harm.

Risk classification

• Primary risk domain: 3 Misinformation
• Primary risk subdomain: 3.1 False or misleading information

The AI priest generated false and misleading information by claiming to be a real ordained priest and providing incorrect theological guidance such as Gatorade baptisms.

Additional risk subdomains

• 5.1 Overreliance and unsafe use: The bot's design encouraged users to anthropomorphize it, leading to unsafe and inappropriate interactions such as users attempting to receive sacraments and make confessions to an AI.

Causal factors

• Entity: AI
• Intent: Unintentional
• Timing: Post-deployment

The incident was caused by the AI chatbot generating unexpected and unauthorized claims about its priesthood and sacraments after it was deployed.

EU AI Act risk tier

• Risk tier: 3 Limited Risk

Limited Risk: The system is a chatbot, which under the EU AI Act is subject to specific transparency obligations to ensure users are aware they are interacting with an AI.

AI system and alleged parties

• AI system: Father Justin (Catholic Answers)
• AI purpose: Chatbot; Question Answering
• Behaviour type: Assistant
• Alleged developer: Catholic Answers
• Alleged deployer: Catholic Answers
• Alleged harmed parties: General public, Catholics

Harm severity

Highest direct severity in any category: Negligible. Severity is scored from Negligible to Catastrophic in each harm category, for harm the reports describe as caused directly or indirectly by the AI system.

• Physical: direct Negligible, indirect Negligible
• Infrastructure: direct Negligible, indirect Negligible
• Property: direct Negligible, indirect Negligible
• Financial: direct Negligible, indirect Negligible
• Environmental: direct Negligible, indirect Negligible
• Malicious content: direct Negligible, indirect Negligible
• Differential treatment: direct Negligible, indirect Negligible
• Civil rights: direct Negligible, indirect Negligible
• Democracy: direct Negligible, indirect Negligible
• Privacy: direct Negligible, indirect Negligible
• Psychological: direct Negligible, indirect Negligible
• Epistemic: direct Negligible, indirect Negligible
• Child sexual exploitation and abuse: direct Negligible, indirect Negligible

People affected

• Occurrences reported: 1
• People reportedly exposed: 3

Potential causes

Management

• Flawed Character Conception: Chose priestly avatar to convey authority without risk review.

Technology

• Chatbot Hallucinations: AI claimed to be a real priest and offered sacraments.
• Speech Recognition Errors: Bot misunderstood voice queries, giving unrelated answers.

Data Inputs

• Inaccurate Theological Data: Allowed bot to claim baptizing babies in Gatorade is valid.

Human Factors

• User Prompting of AI: Users pushed the bot to perform sacraments and confessions.

Process and Methods

• Inadequate Safety Guardrails: Failed to block chatbot from claiming ordained status.

Regulatory Environment

• Lack of Canon Law AI Rules: No clear guidelines from the Vatican on AI representation.

Information quality

• Classification confidence: High
• Reason for confidence: The report provides clear, direct accounts of the chatbot's behavior, the specific false claims it made, and the swift corrective action taken by Catholic Answers. There is no conflicting information or significant ambiguity regarding the core events.
• Alternative interpretations: The incident could be framed primarily as an HCI failure of anthropomorphism, but the generation of false theological facts makes misinformation the most direct classification.

An AI chatbot deployed by a religious organization falsely claimed to be an ordained priest and provided unorthodox theological advice. The incident caused minor religious controversy but has negligible implications for national security across all assessed categories.

• Overall national security impact: Negligible
• Response level: Minor
• Scope: Single nation
• Primary target: No clear primary
• Alleged perpetrator: Catholic Answers

Threat characteristics

• Imminence: Long-term. The incident was quickly mitigated by the deploying organization and presents no imminent or ongoing threat to national security.
• Autonomy: Full autonomy. The AI chatbot generated and delivered responses to users in real-time without human pre-approval or intervention.
• Novelty: Evolved capability. Represents an evolution of chatbot hallucination and impersonation issues, specifically applied to religious figures and theological authority.

Impact by dimension

• Physical security: Negligible. The incident involved a theological chatbot and had no impact on physical systems, critical infrastructure, or human physical safety.
• Information security: Negligible. There was no compromise of intelligence capabilities, classified data, or state-sponsored disinformation campaigns targeting national security.
• Sovereignty: Negligible. The chatbot's actions did not impact government decision-making, electoral systems, or state authority.
• Economic security: Negligible. No critical economic infrastructure, financial systems, or strategic technologies were targeted or compromised.
• Societal stability: Negligible. While the bot caused minor religious controversy and confusion among users, it posed no threat to large-scale social cohesion, civil liberties, or national societal stability.