There is smoke without a fire, in this case.
Almost all the regular members here use CC, as well as myself. There have been some reported incidents of conflicts between Cc and various software. The reason is not because there is a fire, but merely because there is a conflict between the two softwares. My suggestion is to put Cc on the excluded list of your AV and do the same with the excluded list of CC. CC has been respected and used for years without incident. My final comment would be to use the software and benefit from the added protection that it offers. If you have the pay version, you may want to turn off the real time protection and use only the scan function. Good luck.