Your Employee’s Password Appeared in an Infostealer Log. Now What?

Infostealer malware silently harvests credentials and active session cookies from infected devices, enabling attackers to impersonate legitimate users and bypass multi-factor authentication entirely. A critical vulnerability in this threat is the prevalence of unmanaged personal devices used to access corporate SaaS applications, which fall outside traditional security controls. Organizations are often caught off-guard because credential theft happens silently and the compromised data circulates in criminal marketplaces before defenders are even aware. This matters because a single exposed session token can grant an attacker full access to cloud environments, email, and sensitive business data without triggering standard authentication alerts.