Is it safe to cook a whole chicken on low in a crockpot,it seems too low doesn't this risk food poisoning?

I just bought a crock pot/slow cooker,and ive never had one before so don't mind my dumb question but I am worried about leaving a whole chicken in there for 10 hours at such a low heat.I have checked it during the last few hours and it seems warm,and not hot at all,won't bacteria grow in this situation?Is it okay to lift the lid during the cooking proccess?