Although much news events are a bit of a positive for the country, as some countries allow the currency to be paid as an official currency last year, they may also "pull bitcoin into the mud." A number of recent hacking crimes have created a shadow over the safety of blockchain technology.
For example, the NiceHash Money Dig Services in December reported that their nearly 70 million Bitcoins were stolen, representing one of the biggest cyber-attacks in history. It is the biggest disadvantage that affects the value of Bitcoin.