1.Wallet Vulnerable To Theft 2.New wallets vulnerable with old passwords via backups 3.Tacing a coin's history 4.Sybil attack 5.Packet sniffing 6.Denial of Service (DoS) attacks 7.Forcing clock drift against a target node 8.Illegal content in the block chain 9.Security Vulnerabilities and bugs 10.Energy Consumption What do you think about the possibility of the above problems related to btc?
I want to share my opinion :If Bitcoin is given to someone else's hand, the transaction can not be canceled unless the person is willing to send the Bitcoin back, so we have to more aware about this.