Bitcoin is hackable. so is every other system relevant to cybersecurity.
Bitcoin is not as hackable as others bcause of it decentralization. where if any target on the bitcoin network is hacked the damage that can be caused will be limited. decentralization provides compartmentalization of risk.
we have seen many attacks on bitcoin but these are all social engineering and political attacks. and attacks on centralized organizations that use bitcoin but operate outside of the network.
Cyber warfare is one of many strong incentives to transition from traditional organization into a world of decentralized ecosystems made possible by cryptocurrency.
https://www.youtube.com/watch?v=lbpCLoXPiC4