Incidents in Jul 2026
Publication date: Dates are source publication dates (JST), not occurrence dates.
Published incidents: 33AI development: 18Data leaks & unauthorized access: 15
Days with incidents
- Jul 1, 2026 · 2 casesKaga Solution Network "Akademiko Navi" · Claude Code
- Jul 2, 2026 · 1 caseClaude Code
- Jul 4, 2026 · 1 caseClaude Code
- Jul 6, 2026 · 5 casesBandai Channel · JCOM · Nifty '@nifty Mail'
- Jul 7, 2026 · 1 caseClaude Code
- Jul 8, 2026 · 4 casesClaude Code · Claude Code · Claude Code: fictitious prompt injection detection report
- Jul 9, 2026 · 3 casesKaikatsu CLUB official app unauthorized access case · Claude Code · First Co., Ltd. member page
- Jul 10, 2026 · 1 caseClaude Code
- Jul 11, 2026 · 1 caseClaude Code
- Jul 12, 2026 · 1 caseClaude Code
- Jul 13, 2026 · 1 caseCursor agent: entire D drive lost
- Jul 14, 2026 · 2 casesmedia4u Inc. SMS sending system · Claude Code
- Jul 15, 2026 · 1 caseOpenAI Codex
- Jul 16, 2026 · 1 caseOpenAI Codex
- Jul 17, 2026 · 1 caseClaude Code
- Jul 24, 2026 · 1 caseMurauchi.com
- Jul 28, 2026 · 1 caseMeitetsu Kyosho (customer information of Chuden Fudosan)
- Jul 29, 2026 · 1 caseC Connect Co., Ltd. "Ink Kakumei"
- Jul 30, 2026 · 2 casesASKUL Corporation · TV Asahi Mediaplex Inc.
- Jul 31, 2026 · 2 casesEPARK Relax & Este "PeakManager" · Sen Corporation "Hai Cheese! Photo"