What do you think Bitcoins biggest vulnerability is?
Government would be bitcoins biggest enemy. Regulation prevents people from getting involved in crypto, thus preventing cryptocurrency's growth and adoptation. Some countries are skeptical and strict when it comes to their people getting involved to it due to scam and issue that crypto is used in illegal activities.
One of the biggest advantages of Bitcoin is that it is not controlled by any authorities, and this allows its users to remain anonymous, although their transactions are visible to everyone. The anonymity of the owners is a significant reason for the growth of Bitcoin in the last couple of years. However, it is also a vulnerability as this anonymity can also contribute to fraud and other crimes. If governments around the world introduce standards that make cryptocurrency difficult to trade, its price will drop.