Hi guys iv been running a source bassed of a pwnscape base and its been going great latley and i just started to get 20+ a day wich means hackers have begun comming in and i think its easily hackable cause some dude was crashing it before

Also another problem i have is it floods with nulls way more then anyother source iv tried to use, if i buy a vps would that stop them. sorry if i sound dumb i never did know where nulls come from i just thought they were items tht dont exist .

So plz can anyone help me with these 2 things