Yes;Bitcoin is really secured.The security syestem of bitcoin account is great.If you can submit your bitcoin in your coinbase account it is totally secured.
Hackers would be able to access your access depending upon your level of protection on your computer make sure your password is not easily accessible and would be changed from time to time. Also when using bitcoin make sure you are not accessing any harmful site in order to prevent access by hackers. Also, I think bitcoin would not be ban by government easily because you are not handling any dangerous activities here.
There is no doubt in the security of bitcoin because if there is small doubt then hacker will hacked that but still there is no such news came about the security of bitcoin and its proof that bitcoin is most secure then other currencies.
You have to know "NO ONE CAN HACK THE BITCOIN SYSTEM", ok? Yup, Bitcoin can't get hack by anyone, because its system created by all users, as long as the users still using Bitcoin and grow more, no one has chance to attack this system. Research the concept about decentralized network, you will understand.