When you launch an Adobe application on systems running macOS 10.12 (Sierra) or macOS 10.13 (High Sierra) with Cylance antivirus, the application crashes and returns the following error:

Adobe Photoshop CC 2018 cannot be opened because of a problem. Check with the developer to make sure Adobe Photoshop CC 2018 works with this version of macOS. You may need to reinstall the application. Be sure to install any available updates for the application and macOS.

Applications Impacted:

  • Adobe Photoshop CC 2018
  • Adobe Indesign CC 2018
  • Adobe Illustrator CC 2018


Contact Cylance support for help on whitelisting applications that are affected by running their anti-virus software.

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