SUID file: System/Library/Core S ..

[tmptjd]

I have a late 2011 27" iMac running Yosemite 10.10 17GB memory. Lately it has been quite slow in loading up web URLs.When running Utilities/Verify Disc Permission. I get the message "Warning: SUID file: System/Library/Core S ... has been modified and will not be repaired"
Can someone give me a clue on what that means and how I can modify this anomaly.

Thank You
jtptjd

 

[Bruno09]

Hi,

don't worry : https://support.apple.com/en-us/HT203172