If it was possible then it will be already attacked and you might get heart attack just kidding. Look there is no authority whom is control bitcoin so where the attacker attack. I don't have any technical knowledge but i understand this things.


People use blockchain technology to secured their system or project. And bitcoin is builded on most advanced blockchain technology. And people use bitcoin for any type of security reason then why we need to think about its safety?

Just chill brother. You are using world most advanced technology.