February 13, 2026
Zendesk Spam Wave Returns With Fake Account Activation Emails
A renewed Zendesk spam wave is flooding inboxes worldwide with unsolicited “Activate your account” emails that appear to come from trusted companies. Many recipients never signed up for any service, yet the messages look authentic and often bypass spam filters. The scale and persistence of the campaign have raised concerns among security teams, especially as the emails originate from legitimate
