Cyber Security· Important
Cisco Talos: attackers increasingly hijack trusted platforms to deliver phishing content
Cisco Talos reports a sharp rise in attacks that abuse legitimate infrastructure — collaboration tools, retailers' order-notification systems, registration forms, and even bounce/delivery-failure reports — to smuggle phishing content past email authentication checks. Talos tracked abuse across more than 25 legitimate platforms in the past year, including two campaigns impersonating Staples and Dell order confirmations that together generated roughly 1,400 messages pushing victims to call attacker-controlled phone numbers. The report also describes 'list bombing' and bounce-message abuse as emerging delivery vectors for malicious lures.