Do Apple's application crash/hang reports contain confidential info.?
Here's Apple's policy regarding info shared in crash reports.  See the part in bold text:


  Analytics information may be sent to Apple when you report a problem; you can opt in or out of sharing the information.
  
  About analytics and privacy
  
  Apple would like your help improving the quality of its products and services, > including Siri and other intelligent features,
  by allowing analytics of usage data from your device and your iCloud
  account.
  
  With your permission, macOS can automatically collect analytics
  information from your Mac and send it to Apple to help improve the
  quality and performance of its products. This information is sent only
  with your consent and is submitted anonymously to Apple.
  
  You can also allow analytics of usage and data from your iCloud
  account to help Apple develop and improve Siri and other intelligent
  features. Analysis of data from your iCloud account including text
  snippets from email messages or other similar data in your account is
  undertaken only after the data has undergone privacy preserving
  techniques such as differential privacy so that it is not associated
  with you or your account.
  
  Further details
  
  If you agree to send Mac Analytics information to Apple, it may include the following:
  
  
  Details about app or system crashes, freezes, or kernel panics
  Information about events on your Mac (for example, whether a certain function such as waking your Mac was successful or not)
  Usage information (for example, data about how you use Apple and third-party software, hardware, and services)
  
  
  Analytics data contains your computer’s hardware and software
  specifications, including information about devices connected to your
  Mac and the versions of the operating system and apps you’re using on
  your Mac. Personal data is either not logged at all in the reports
  generated by your Mac, is subject to privacy preserving techniques
  such as differential privacy, or is removed from any reports before
  they’re sent to Apple. If you want to add a description of your
  actions when the problem occurred, click the disclosure triangle and
  enter your comments. Please do not provide personal information.