I have abused sudo.

I have created a really really short life temporary directory that I wanted to share between some users for a few hours... and I named this directory /some/path/tmp

Unfortunately I have launched sudo chown 777 -R /tmp instead of sudo chown 777 -R tmp

so my /tmp file is now completely public.

I use the common /tmp pretty often (every day, almost every hour) personally for short life files, scripts, lots of scripts.

Is it a security breach now that it is completely set to public? Should I change it back to more secure settings, or like common default settings for a Debian / Ubuntu distro - (I don't know which they were)? What are the common right settings for /tmp?