I have noticed that there are reports about bitcoin accounts being hacked. Security is always a concern anywhere on the internet. Even the strongest most depended government sites are also reportedly hacked. So no matter how safe transactions are hacking is always the main problem. I believe bitcoin is really safe.  The only thing that makes it unsafe is our failure to make every info safe and secure. We often click on links not thinking that these might carry the viruses or malware or perhaps we didn't log out accounts such that someone will then see it. Perhaps we need to educate ourselves even more.