By Johannes B. Ullrich, Ph.D. Zyxel Exploitation Under Way
https://isc.sans.edu/forums/diary/Scans+for+Zyxel+Backdoors+are+Commencing/26954/
Fortinet Patches
https://www.fortiguard.com/psirt?date=01-2021
Foxit PhantomPDF Patches
https://www.foxitsoftware.com/support/security-bulletins.html
Firefox Android Updates
https://www.mozilla.org/en-US/security/advisories/mfsa2021-01/
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