GIS Users,

Some of you may have received an email from Esri regarding an update to their security requirements. GHE has already configured our ArcGIS Enterprise to use the security standards mentioned in this update, and no action is required on our part.

If you have any concerns, feel free to reach out.

Michael Schoelen
GIS Administrator [CTR]

Office of the Chief Information Officer
Geospatial Hosting Environment Project
Direct: 202-707-2516
Cell: 301-938-7249
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From: Esri <[log in to unmask]<mailto:[log in to unmask]>>
Sent: Thursday, November 15, 2018 9:52 AM
To: Hasier, Paulette M. <[log in to unmask]<mailto:[log in to unmask]>>
Subject: Action Required - ArcGIS Security Update

We are making an important configuration change to ArcGIS for TLS support.

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Important Update for ArcGIS and TLS<>

Esri is committed to providing strong security for the ArcGIS platform by using the latest industry standards and best practices for security protocols. To meet these industry expectations, we are making an important update to ArcGIS Online in February 2019 that is likely to affect most ArcGIS software and custom solutions. With this change, we are enforcing the use of TLS (Transport Layer Security) version 1.2 only and will remove support for earlier TLS versions 1.0 and 1.1.

More details about Esri’s support for TLS, including patches and instructions for updating software, can be found by visiting<>.

Who is affected?
Users of most ArcGIS software or custom solutions using Esri technology may be affected by this planned update to TLS protocol v1.2.

What do I need to do now?
Go to the Esri TLS Support page<> for more information and specific actions you may need to take in advance of this update.

If this email is not applicable to you, please forward this email to the one who manages your ArcGIS software or custom solutions using Esri technology.
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