[q] About Boost Steam Hours Idle

Hello Sythe community, I just have a question, Im kinda interested in the service about idle boosting game hours... let say I decided to get the service from someone who is offering, is our steam account secured? like I know I can get my steam account back since I have enough proof of ownership... I mean if I decided to let someone boost my game hours, I give username and pass and the code from email? correct me if im wrong but i think anyone can change pass, email, secret question. from the first code from the email correct?

and lastly... can we also play on the acct while its boosted? like I can play normal games in dota etc? and still get boosted after I log-out on my account???

Thanks