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OWAReaper Backdoor Targeting Microsoft Exchange — Colorado Springs

WatchkeeperPublished Jul 30, 2026

A threat actor is actively exploiting Microsoft Exchange servers via the OWAReaper backdoor, with a CI Fortify advisory recommending isolation of critical systems in Colorado Springs. With roughly 66,000 combined contact-center, back-office, and know

A threat actor is actively exploiting Microsoft Exchange servers via the OWAReaper backdoor, with a CI Fortify advisory recommending isolation of critical systems in Colorado Springs. With roughly 66,000 combined contact-center, back-office, and knowledge-worker seats in the broader footprint, Exchange-dependent communications and workforce management platforms face elevated risk of credential theft, lateral movement, or service disruption. Operations leaders should verify Exchange patch status, review isolation protocols for mail-dependent workflows, and monitor for anomalous authentication activity across affected sites.

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