A signed, working PDF viewer hides a Rust backdoor - a valid EV cert is not proof of trust. https://intel.threadlinqs.com/threat/TL-2026-3597 #ThreatIntel #zenith #wincloudhaze #QuartzLine

A signed, working PDF viewer hides a Rust backdoor - a valid EV cert is not proof of trust. https://intel.threadlinqs.com/threat/TL-2026-3597 #ThreatIntel #zenith #wincloudhaze #QuartzLine