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critical severity June 17, 2026 · scope unconfirmed

30K+ Fortinet Devices Compromised in Credential Heist

Researchers discovered a large-scale credential harvesting campaign compromising over 30,000 Fortinet firewalls and VPN gateways across 194 countries. Attackers used credential stuffing and reuse from prior leaks on exposed devices, affecting government, telecom, healthcare, education, finance, and critical infrastructure. The operation is self-sustaining and linked to Russian-speaking actors with financial and espionage motives.

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30K+ Fortinet Devices Compromised in Credential Heist
Data exposed:
  • credentials
  • device access

More than 30,000 Fortinet firewalls and VPN gateways were compromised in a credential harvesting campaign that spanned 194 countries and targeted government agencies, telecom providers, healthcare organizations, schools, banks, and critical infrastructure.

Public reporting from Dark Reading indicates that attackers relied on credential stuffing, using usernames and passwords stolen from earlier breaches to gain access to the devices. The operation, linked to Russian-speaking actors, combined financial motives with espionage goals. Available reporting describes the campaign as self-sustaining, with compromised devices providing fresh credentials that fuel further attacks. The exposed data includes credentials and direct device access, though the exact number of individual users affected remains unknown.

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