Bitcoin as a network is the one that has the most resilience to such a scenario. Other destributed networks like nostr and Tor also have higher resilience.
Critical infrastructure, banking rails, and IoT devices are likely the most vulnerable.
Best to get your household in order now rather than later. Think through building redundancy with the essentials: food, water, energy, communications, transportation, etc.
Books are good to think about too, as well as offline storage of important digital content.
A cyber pandemic scenario may be bad, but the other side of it may be worse: CBDCs, digitalIDs, heavily captured and regulated internet, possibility of self-custody wallets and tools being outlawed.
No intention to black pill, but to be realistic about the threats based on what Davos Man, his puppets, and his assets have been saying and signaling out in the open.
Some good defenses are nonKYC bitcoin, physical cash, church and community, local paralell economies, and local magistrates. Also supporting orgs dedicated to pushing back against Orwellian dictates like ADF, EFF, HRF, etc.