The company's support site allows anyone to open a ticket using any email address and subject line. The system then replies automatically, sending a case number and using the submitted ticket title as the email subject.Attackers abuse this feature by submitting tickets with titles containing urgent phishing messages, such as "[URGENT]: vault.trezor.guide - Create a Trezor Vault now in order to secure assets who may potentially be at risk."Since the reply comes from the legitimate help@trezor.io address, it appears authentic to recipients but contains an email subject with a fake alert that links to a phishing site.
This is what makes me so nervous about hardware wallets in general (seedsigner and krux excepted): you are on a list.