{"success":true,"data":{"id":"css-hidden-text-salting","label":"CSS hidden text salting — 3+ concealment techniques (zero-font, display:none, opacity:0, etc.)","description":"CSS hidden text salting / zero-font attack (Cisco Talos 2025). The HTML body uses 3+ distinct CSS concealment techniques simultaneously — font-size:0, display:none, opacity:0, visibility:hidden, max-height:0, color:transparent, or zero-width overflow:hidden containers. Attackers inject hidden text blocks with benign words to dilute classifier confidence while the VISIBLE text is the phishing payload. A single display:none is normal (newsletter preheaders); 3+ simultaneous techniques is a strong classifier-poisoning fingerprint.","tier":"danger","category":"other","isThin":false}}