Infostealers are dangerous because they often go unnoticed — triggering no alerts, no crashes, and few visible symptoms — while exposing full access to attackers.

• They don’t always trigger warnings — some are missed entirely by antivirus or login monitoring

• They enable attackers to bypass MFA — by reusing stolen tokens or cookies to log in as real users

• They spread silently — often on unmanaged or personal devices

• They are used with delay — because misuse often occurs days or weeks later, it's harder to link back to the original infection

• They are part of a criminal ecosystem — logs are sold and reused across dark web platforms and Telegram groups

Because many infostealers evade detection and leave little trace in traditional logging systems, infections can remain unnoticed. The Verizon Data Breach Investigations Report confirms that credential theft and session hijacking are among the leading causes of real-world breaches. In many cases, no investigation is triggered — meaning the same session or credentials can be abused for weeks before being discovered.

Infostealers fuel a large-scale criminal ecosystem. Logs are indexed, enriched and traded — often within hours of infection. Attackers don’t need to target anyone: they choose victims based on available access, keywords, or exposed domains. As a result, organizations become visible through their weakest links — infected employees, suppliers, or unmanaged devices.