package management - Is universe checked by the Ubuntu Security team?

I have a generall question regarding the Ubuntu universe repository. Does anybody know if they are checked by Ubuntu Security Team? Will they move or delete packages if any problem is encountered especially security problem.

Thanks for help :)

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I just want to know how much trust can I put in programs in Universe-Repositories. I do install only stuff from main.
If a package in the Universe will be found as dangerous - will Ubuntu Team delete it?
Thanks