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  • Four-Hour Network-Wide “Airplane Mode” Test - Sunday, August 23

Four-Hour Network-Wide “Airplane Mode” Test - Sunday, August 23

Published:
August 17, 2026

What You Need To Know

WHAT'S HAPPENING: We will test our "Airplane Mode" security protocol, which immediately blocks all web-based traffic across the network in the event of a large-scale cyberattack.

WHEN: Sunday, August 23, from 12 to 4 p.m.

IMPACT: During the four-hour test, the following services will be unavailable.

  • On-Site Internet Access: If you are working on-site, you will not be able to:
    • Send or receive emails or Google Chat messages.
    • Access other third-party web applications that require internet access.
  • Remote System Access: If you are working off-site, you will not be able to connect to the HMH network.

ON CALL NOTICE: Individuals on-call during this time will not have remote system access. Support and patient care can only be provided while on-site within the HMH network.

SUPPORT: Submit issues to the Service Desk by phone only:

  • Internal Extension: x3333
  • External Phone Number: 848-237-3333

Important Note: Service Desk email and web-based support will be unavailable during the test. This includes:

  • ITServiceDesk@hmhn.org
  • EpicServiceDesk@hmhn.org
  • MySupport
     



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  • Four-Hour Network-Wide “Airplane Mode” Test - Sunday, August 23

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