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Cyber situational awareness
SA-2026-001 Code: Black October
Public security advisory

Elevated monitoring in response to ongoing cyber activity.

Stealth Communications has raised its cybersecurity monitoring posture in response to the current threat environment.

Document status
Active
Monitoring posture
Elevated
Impact at latest advisory revision
None identified
Customer action
Secure your systems
Reviewed assessment

Assessment at the latest advisory revision.

As of the latest approved advisory revision recorded on this page, Stealth has identified no evidence of compromise of its infrastructure or material impact to its services associated with the activity under review.

The latest advisory revision is dated . Stealth reviewed the records on . This human review is separate from the automated verification record and does not certify later automated checks.

Daily certification: no dated certification has yet been published here. Future entries will identify the date, scope, and outcome of the checks reported and reviewed for publication.

Customer action

Customers must secure their own infrastructure.

Stealth's elevated monitoring and protective measures focus on Stealth's infrastructure. Customers remain responsible for securing their own firewalls, network equipment, and systems.

Customers should continue normal security practices and report suspected activity using the secure reporting contacts below.

Actions in force

Monitoring. Hardening. Containment.

Stealth's Cybersecurity Team remains at a heightened state of readiness. Current measures are focused on early detection, controlled isolation, and rapid remediation.

  1. Threat intelligence

    We are monitoring advisories and reporting from the National Security Agency, Cybersecurity and Infrastructure Security Agency, Federal Bureau of Investigation, sensitive entities, relevant technology vendors, vetted open-source intelligence sources, and vetted human intelligence sources.

    Continuous

  2. Software assurance

    Software packages in scope are being updated in accordance with current vendor guidance and established change control procedures.

    In force

  3. Detection and containment

    Additional near-real-time detection and automated containment capabilities are being implemented to isolate suspected activity while analysts validate findings and complete any necessary remediation or patch deployment.

    Deployment ongoing
Monitoring update

Stealth uses hourly automated checks and threat intelligence to monitor its infrastructure.

  1. Scheduled automated checks

    Automated checks completed. Advisory review is ongoing. This update does not establish a compromise or a current all-clear.

Update protocol

Material updates will be published on this page.

Secure reporting.

Choose the intended recipient. For sensitive details, encrypt your message with that person’s OpenPGP public key.

Verify the complete fingerprint before sending sensitive information. Use a neutral subject line: email addresses, subject lines, and other message metadata are not encrypted. Never send passwords or private keys.