According to CoinMeta, Vitalik Buterin states that despite the growing number of people who believe that AI hackers signify that network security is doomed to fail, he holds a different opinion. He believes that network security can be defended to a certain extent, as long as people are able to clarify their thinking. Buterin also mentioned that anyone who continues to hold cryptocurrencies (including himself, which accounts for about 90% of his net assets) is implicitly making such a bet. He emphasizes that defining security requires careful consideration, and in key security components, the defined attack surface is much smaller than the actual attack surface that can be carried out.