Hackers can be a bad thing sometimes but it depends on what you believe in but
Good:Hackers are hired by Companies to check their computer storage,data mainframe,check anything else and ETC, like one time in 2012,[I believe]the Anonymous hacked into a bank and stole over $1,000,000,000 dollars from people with credit and the rich from the greedy and gave it the the people in need,and for charity
Bad:Do i need to say more....Well if a hacker can try to hack into nasa but fail miserably ,They can try to hack into nuclear weapon's and many, many other things....[if you can read this +1000 respect to you] but beside the fact UGNazi or whatever hackers can still try to destroy us without pity or remorse.