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Esri has just announced for the ArcGIS Platform that security changes are scheduled for implementation in February 2019. These changes could impact the use of web services from ArcGIS Online or ArcGIS Enterprise/Server. Next February Esri will be dropping support for TLS 1.1 and earlier. It will only support TLS 1.2 and newer. What is TLS you may ask? TLS stands for Transport Layer Security. It provides data privacy and integrity between applications communicating over a network including the internet. TLS has replaced the older SSL as a more effective and efficient way to securely communicate across a network. TLS does this by having stronger message authentication, key-material generation and other encryption algorithms. To learn more about TLS and how it works, check out these links: * https://www.networkworld.com/article/2303073/lan-wan/lan-wan-what-is-transpo rt-layer-security-protocol.html * https://en.wikipedia.org/wiki/Transport_Layer_Security * https://youtu.be/VzWqnT5dErI If you are currently using ArcGIS Online services such as basemaps, data layers, web maps and geoprocessing services, then you have been using TLS to access those items. Depending on how your ArcGIS Enterprise/Server is setup, you most likely are using TLS for it as well. How will this impact you moving forward? You will need to install patches that allow ArcGIS to use the newer version of TLS. Esri is working on those patches right now. They should be released soon. We will try to keep you posted as we receive new information. For more information about TLS and ArcGIS go to - https://support.esri.com/en/tls This will be on top of the changes to ArcGIS Online which are coming on December 4 in an update. Don't forget about this as well. One of the biggest changes the December 4th update will implement are the new user types. This video will explain the new user types - https://youtu.be/TpcnnDiuvWc We hope you have found this information useful. We will keep you posted as we learn more. Tripp Corbin, MCP, GISP | Chief Executive Officer <http://www.egisassociates.com/> eGIS Associates, Inc. <mailto:[log in to unmask]> [log in to unmask] | www.egisassociates.com 678-710-9710 ext 0021 | 678-672-8970 Direct Dial Esri Certified Desktop Professional | Esri Certified Enterprise System Design Associate Order my new <https://www.packtpub.com/application-development/arcgis-pro-2x-cookbook> ArcGIS Pro Cookbook now & don't forget about <https://www.packtpub.com/application-development/learning-arcgis-pro> Learning ArcGIS Pro <https://https/www.packtpub.com/application-development/arcgis-pro-2x-cookbo ok> <https://www.packtpub.com/application-development/learning-arcgis-pro> ------------------------------------------------------------------------- This list (NEARC-L) is an unmoderated discussion list for all NEARC Users. If you no longer wish to receive e-mail from this list, you can remove yourself by going to http://s.uconn.edu/nearcsubscribe.