Accidently gave essay notes to a classmate So at the last day of class a classmate asked if they could borrow some of my lecture notes for studying for the final (this was a history class). I said sure and sent them to their usb. Since it was near the end of class I was rushing to copy and paste my files and in that I think I also sent them my essay notes by mistake. I do not know their name and I have contacted the department head and my professor about the issue letting them know as I am worried they could use these notes in their paper. The notes are not my draft or final copy, they just summarise each article the professor gave for the essay, and the paper itself was well overdue at this point. The office told me I would not likely get in trouble but I still have worries as marking is ongoing. Have I done the right thing so far? Is there anything else I should do?
You have taken appropriate action already. If you meet up with the person warn them against using the notes. But, if you want some additional security, print out your notes and get someone you trust to sign and date them. Now you have a clear marker. I doubt that this is necessary, but if you are paranoid,...

But any infraction of rules would be by the other student, not yourself. Notes are just notes. Relax.