Just come it to my mind. is it possible? to get hook into your wallet and send some to another wallet?

Yes, it is possible. Nowadays, hackers use SQL injection to hack a bitcoin wallet. So how does it works?.
In order to do this, they'll send an amount into a victim's wallet. Afterwards, they would do the SQL injection that will took 7 minutes in total. After that, the amoun that they send on victim's wallet would be multiply by 2 or 10. Be careful of dropping your wallet pubplicly, and do not put all your money in only one wallet.