DeepLoad is an active malware campaign documented by ReliaQuest that targets Windows systems through social engineering, then steals browser credentials from Chrome and Firefox. The threat’s most significant business risk is a built-in WMI-based reinfection mechanism that reinstates the malware approximately three days after remediation without attacker interaction, meaning standard incident response procedures may produce a false sense of containment. Any organization with Windows endpoints, browser-stored credentials, and USB-connected devices is in scope; credential theft at scale can enable account takeover, privilege escalation, and downstream breaches.