Home › Intelligence › Brief
BREACH BRIEF 🟠 High Breach

Supply‑Chain Compromise of NIKKE PC Launcher Exposes Player Passwords and Personal Files

Attackers injected malicious JavaScript into the official Windows launcher for the game *Goddess of Victory: NIKKE*, turning it into a remote‑control agent that harvested passwords, cookies, and cryptocurrency wallet data. The breach underscores the importance of continuous monitoring of third‑party software components for audit and compliance readiness.

Verisq™ Intelligence · 📅 November 06, 2026 · 📰 malwarebytes.com
Get the weekly threat digestBreaches, exploited vulnerabilities and advisories that matter to your vendors, every Friday. Free.
🟠
Severity
High
BR
Type
Breach
🎯
Confidence
High
🏢
Affected
2 sector(s)
✅
Actions
4 recommended
📰
Source
malwarebytes.com

Supply‑Chain Compromise of NIKKE PC Launcher Exposes Player Passwords and Personal Files

What Happened — Attackers infiltrated the content‑delivery network (CDN) used by Level Infinite’s Windows launcher for Goddess of Victory: NIKKE. Malicious JavaScript was injected into four launcher files, turning the trusted client into a remote‑control agent. When a player opened the compromised launcher (Oct 23 – Nov 4, 2026) the agent could execute system commands, browse folders, capture screenshots, harvest saved game credentials, browser passwords, cookies, API tokens, and cryptocurrency‑wallet data. Level Infinite replaced the tainted scripts on Nov 4 and refreshed the CDN cache, but any PC that ran the launcher during the window may still retain the payload or have had data exfiltrated.

Why It Matters for Trust & Control Assurance — The incident highlights the need for continuous third‑party component monitoring to prove supply‑chain integrity.

Who Is Affected – Gaming publishers, PC gamers, and any organization that distributes software via third‑party CDNs.

Recommended Actions –

  1. Verify the launcher’s hash against the vendor’s official checksum; reinstall from a clean source if mismatched.
  2. Change all game‑related passwords and any reused credentials from an uncompromised device.
  3. Scan the system with reputable anti‑malware tools and follow Level Infinite’s removal guide.
  4. Implement a supply‑chain validation program (code signing, hash verification, CDN integrity checks) and retain evidence for audit readiness.

Technical Notes – Attack vector: third‑party CDN compromise (supply‑chain). No CVE was disclosed. Malicious code enabled remote‑control commands, credential harvesting, and file exfiltration. Source: Malwarebytes Labs

📰 Original Source
https://www.malwarebytes.com/blog/news/2026/11/nikke-pc-launcher-compromise-put-players-passwords-and-personal-files-at-risk ↗

This Verisq Intelligence Brief is an independent analysis. Read the original reporting at the link above.

Third-party risk

Does this breach reach you?

Verisq continuously monitors your vendors for breach and ransomware activity, so the question stops being whether it happened and becomes whether it reaches you.

See a live Trust Center →