← Blog

Bandai Namco Data Breaches: Full Timeline Through 2026

Share on X

People search Bandai Namco data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 2 Bandai Namco-linked incidents (1 company-confirmed), with headline counts up to 47K+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.

Why Bandai Namco breach history matters

Bandai Namco operates in Technology (Japan). Across indexed rows, recurring themes include ransomware and extortion, zero-day exploitation and malware. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.

Full timeline through 2026

2026 — unauthorized subscription cancellations; 46,812 accounts

Verified breach. Verified cyber incident — attack window November 4, 2025. Tokyo police arrested a 15-year-old student on July 4, 2026 over an alleged cyberattack targeting Bandai Channel, the anime streaming service operated by Bandai Namco Filmworks. Police allege the suspect used a program created with ChatGPT assistance to send false information exploiting a system vulnerability, causing unauthorized cancellation of 46,812 subscription accounts between roughly 5:00 p.m. and 8:45 p.m. on November 4, 2025. Bandai Namco operations Exposed categories include Unauthorized cancellation of 46,812 subscription accounts; police believe member information including email addresses and usernames was obtained during the incident—misuse not con. BreachHistory cites approximately 47K+ affected records in this row. See the bandai-channel-cyber 2026 record and canonical BreachHistory entry.

2022 — — Customer data

Cataloged incident. Ransomware. Customer data. Exposed categories include Names, emails, addresses, and other PII. No attested victim count is published for this row yet. See the bandai-namco2022 and canonical BreachHistory entry.

Patterns and analysis

  • Ransomware and extortion — appears across multiple Bandai Namco catalog entries; prioritize controls that address this class of failure.
  • Zero-day exploitation and malware — appears across multiple Bandai Namco catalog entries; prioritize controls that address this class of failure.
  • Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
  • 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.

What to do if you may be affected

  1. Step 1: Enable phishing-resistant MFA on every account tied to this brand.
  2. Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
  3. Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
  4. Step 4: Review OAuth app permissions and revoke unused third-party integrations.
  5. Step 5: Bookmark the Bandai Namco company page for new 2026+ disclosures.

Canonical BreachHistory hub

Explore every indexed row: breachhistory.com/bandai-namco · Latest: bandai-channel-cyber2026.

Sources: BreachHistory catalog (2 rows for Bandai Namco), company and regulator disclosures cited in individual breach records.