Infostealer malware and Phishing-as-a-Service platforms have created an industrialized supply chain for stealing session tokens from authenticated users, allowing attackers to impersonate employees across cloud services, SaaS platforms, email, and financial portals without ever needing their passwords. Threat intelligence sources document significant year-over-year increase in identity-based attacks driven by this ecosystem. The business risk is direct account takeover of fully authenticated sessions, meaning existing password + second-factor MFA investments provide no protection against this attack class once initial authentication is complete; however, device-binding and phishing-resistant MFA (FIDO2) reduce exposure.