Ransomware Gangs Attack Palo Alto, Fortinet, Citrix, and Check Point VPNs to Target Corporate Networks

{
  "signal_id": "93a01885-67db-3986-699c-10c154871cb8",
  "signal_type": "news",
  "signal_subtype": "security_incident",
  "detected_at": "2026-07-27T08:12:16+00:00",
  "company": {
    "name": "Fortinet",
    "domain": "fortinet.com"
  },
  "data": {
    "url": "https://cybersecuritynews.com/ransomware-gangs-attack-vpn/",
    "title": "Ransomware Gangs Attack Palo Alto, Fortinet, Citrix, and Check Point VPNs to Target Corporate Networks - CyberSecurityNews",
    "excerpt": "A coordinated wave of exploitation targeting edge VPN and firewall appliances from four major vendors Palo Alto Networks, Fortinet, Citrix, and Check Point has emerged as the dominant initial-access vector for ransomware operators in mid-2026. Threat actors, including affiliates of the Qilin ransomware-as-a-service (RaaS) operation , are chaining authentication-bypass flaws, credential-harvesting campaigns, and legacy-protocol weaknesses to obtain unauthenticated or credential-free access to corporate perimeters. Once inside, these actors move rapidly toward lateral movement, data exfiltration, and double-extortion ransomware deployment, often within days of a CVE’s public disclosure. The campaigns analyzed here span four separate but converging incidents: the “Fortibleed” mass credential-compromise campaign against roughly 75,000 internet-facing FortiGate firewalls; active exploitation of the Palo Alto GlobalProtect authentication-bypass flaw CVE-2026-0257 ; Qilin-linked exploitation of the Check Point VPN authentication-bypass flaw CVE-2026-50751 tied to the deprecated IKEv1 protocol; and rapid in-the-wild abuse of a new CitrixBleed-style NetScaler memory-disclosure bug, CVE-2026-8451 . Each incident underscores the same operational reality: internet-facing remote access infrastructure has become the ransomware ecosystem’s preferred front door. Enterprise VPN and firewall...",
    "product": "FortiGate",
    "summary": "Fortinet's FortiGate firewalls are targeted in a large-scale credential-harvesting campaign called \"Fortibleed,\" compromising credentials for up to 75,000 devices and providing ransomware operators with access to corporate networks.",
    "planning": false,
    "image_url": "http://cybersecuritynews.com/wp-content/uploads/2026/07/Ransomware-Gangs-Attack-VPN1.webp",
    "confidence": 0.9,
    "product_data": {
      "name": "FortiGate",
      "full_text": "FortiGate firewalls",
      "fuzzy_match": false
    },
    "product_tags": [
      "security",
      "general_technology"
    ],
    "published_at": "2026-07-27T08:12:16Z",
    "vulnerability": "“Fortibleed” mass credential-compromise campaign",
    "article_sentence": "The campaigns analyzed here span four separate but converging incidents: the “Fortibleed” mass credential-compromise campaign against roughly 75,000 internet-facing FortiGate firewalls; active exploitation of the Palo Alto GlobalProtect authentication-bypass flaw CVE-2026-0257 ; Qilin-linked exploitation of the Check Point VPN authentication-bypass flaw CVE-2026-50751 tied to the deprecated IKEv1 protocol; and rapid in-the-wild abuse of a new CitrixBleed-style NetScaler memory-disclosure bug, CVE-2026-8451 ."
  }
}

curl https://signals.autobound.ai/v1/signals/93a01885-67db-3986-699c-10c154871cb8 \
  -H "X-API-KEY: $AUTOBOUND_API_KEY"

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"fortinet.com","limit":20}'