Infostealers are designed to evade traditional tools — and they succeed. That’s why prevention must focus on limiting access, visibility, and exposure in the first place.

Infostealer infections can't be stopped by antivirus alone. Effective prevention requires organizations to rethink how they manage access, endpoints, and exposure — while also educating users on risky behaviors.

Organization-wide controls

• Enforce managed devices for all logins — avoid personal laptops or unmanaged systems

• Use VDI or secure browsers for third-party or remote access — solutions like Citrix, VMware, or Amazon Workspaces Secure Browser reduce session theft by isolating access from local devices

• Block downloads of executables and untrusted extensions — especially for non-admin users

• Disallow browser-based credential storage — and push company-wide use of secure password managers with MFA

• Deploy conditional access and device posture checks — especially for sensitive apps and admin panels

• Rotate credentials regularly — especially for privileged accounts and internal tools

• Limit session token duration and reuse — shorten session lifetimes and restrict reuse based on device or IP context

• Use device fingerprinting and session anomaly detection — detect token replay and session misuse

Build user awareness

Some of the most effective defenses begin with users. Train employees to:

• Avoid saving passwords in browsers

• Avoid using personal devices to access internal systems

• Never install cracked software — it’s a primary delivery method for stealers

• Be cautious with downloads, fake installers, torrents, or suspicious attachments — these are common stealer delivery methods

• Limit long-lived browser sessions and enforce periodic reauthentication for critical apps

• Recognize fake login pages, CAPTCHA pages or MFA prompts

Real prevention depends on layered access control, policy enforcement, and strong user awareness. But even strong prevention doesn’t catch every infection. That’s why early detection matters.