Zoom Stealer browser extensions harvest corporate meeting intelligence

BleepingComputer

December 30, 2025 at 3:41 PM

Actively Exploited

Overview

Researchers have identified a campaign dubbed 'Zoom Stealer' that targets users of popular web browsers, specifically Chrome, Firefox, and Microsoft Edge. This attack has already impacted around 2.2 million users through 18 malicious browser extensions. These extensions are designed to gather sensitive information related to online meetings, including URLs, IDs, topics, descriptions, and even embedded passwords. The implications of this data theft are significant, as it can lead to unauthorized access to corporate meetings and sensitive discussions. Companies using these browsers should be vigilant and consider removing any unverified extensions to protect their data.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Chrome, Firefox, Microsoft Edge users; 18 malicious browser extensions
Action Required: Users should remove any suspicious or unverified browser extensions and ensure their browsers are updated to the latest versions.
Timeline: Newly disclosed

Original Article Summary

A newly discovered campaign, which researchers call Zoom Stealer, is affecting 2.2 million Chrome, Firefox, and Microsoft Edge users through 18 extensions that collect online meeting-related data like URLs, IDs, topics, descriptions, and embedded passwords. [...]

Impact

Chrome, Firefox, Microsoft Edge users; 18 malicious browser extensions

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Users should remove any suspicious or unverified browser extensions and ensure their browsers are updated to the latest versions.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Microsoft, Google.

Read Original Article

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