The Water Saci campaign has showcased an alarming evolution in cyber threats, particularly in Latin America, where attackers have transitioned from traditional phishing tactics to sophisticated malware propagation via WhatsApp Web. As of October 2025, the campaign employs advanced script-based techniques, including self-propagation through hijacked WhatsApp sessions and dynamic credential theft via fake banking overlays. This shift reflects a broader trend in cybercrime, where attackers exploit popular communication platforms to enhance stealth and effectiveness. The implications for businesses are significant, necessitating enhanced security measures, including user training and advanced endpoint protection, to combat these increasingly adaptive threats and safeguard sensitive information.