A growing family of malware known as "infostealers" is quietly becoming one of the most common threats facing small and mid-size businesses. Programs like Lumma and RedLine run silently in the background after an employee clicks a malicious link or downloads a compromised file. Within seconds, the malware copies every username and password saved in Chrome, Edge, or Firefox. It also grabs stored credit card numbers, session cookies, and autofill data. The stolen credentials are then sold in bulk on dark web marketplaces, often for less than ten dollars per set.
The core problem is convenience. Most employees save passwords directly in their browser because it is fast and easy. But browsers store these credentials in ways that malware can extract without ever needing your Windows login. A dedicated password manager with a zero-knowledge architecture is far more resistant to this type of theft. We recommend migrating all saved browser passwords into an enterprise password manager, then disabling the browser's built-in save feature through group policy. Pair this with endpoint detection and response software that can flag infostealer behavior the moment it starts. If your team is still relying on saved browser passwords, contact us for a credential security assessment before an infostealer does the auditing for you.