Until now nobody can hack bitcoin wallet except due to errors and inability of wallet users, we never heard blockchain on hack, it proves that this system is very safe and can be used for safe and convenient transaction
yes you are right bitcoin is a safe and secure currency and hacking bitcoin could not be so easy because now in bitcoin there are a lot of wallet invented so bitcoin is safe but there could be some error in the system of the computer or laptop but not the system of the bitcoin wallet so I think hacking bitcoin is not so easy.