Ports and Services: Why FortiGate Exposure Numbers Depend on the Question You Ask On 18 June 2026, the Australian Cyber Security Centre (ACSC) published an alert titled "Reported widespread credential exposure affecting Fortinet Firewalls and VPN Gateways" [1]. The alert states that the ACSC "is aware of public reporting of a widespread malicious campaign against Fortinet Firewalls and VPN gateways, largely utilising exposed credentials and credential-based attacks, leading to potential comp...