
- LayerX found 17 malicious browser extensions with 840,000+ downloads
- Extensions hijacked affiliate links, injected tracking, and enabled ad fraud
- All extensions removed, but users must uninstall them manually
Security researchers LayerX have discovered 17 extensions for Chrome, Firefox, and Edge browsers which monitored people’s internet activity and installed backdoors for persistent access. In total, the extensions were downloaded more than 840,000 times.