Visa PERC Fall 2025 report: 450% rise in dark-web AI agent fraud mentions
Biannual threats report documents 450%+ increase in dark-web posts mentioning AI agents for fraud and 25% rise in malicious bot transactions targeting merchants.
PERC is Visa's biannual payments-ecosystem risk report, and this edition is the first to make AI agent security and agentic fraud a headline category. The 450% dark-web mention figure and 25% malicious-bot transaction rise quantify the threat surface that Visa's own Trusted Agent Protocol (2025-w42-payments-visa-trusted-agent-protocol) targets. The data is later corroborated structurally by Google's empirical prompt-injection census (2026-w17-security-google-prompt-injection-empirical-study), which finds 15,300 injection instances across 11,700 pages with payment-fraud payloads among the most common. Together the two studies form the only quantified bot-and-injection data in the Security lane of this archive. The report's release a week before Mastercard Agent Pay goes live (2025-w44-payments-mastercard-agent-pay-live-us) marks the moment production agent payments and measured threat data both arrived.