While I agree if your whole network is compromised, your pretty stuffed and will likely need to do a scorched earth approach and rebuild from scratch (as many US departments are doing to clear out the SolarWinds supply chain compromise) and it depends on how well segregated your network is. Most big companies have decent backup policies and procedures as it’s often demanded by regulators that they comply. It would also surprise me if they didn’t being so close to NK and China as state sponsored espionage will be a daily occurrence for them. Smaller and medium businesses rely more heavily on cloud backups these days but bigger older companies will still use a hybrid approach as most will still have non cloud compatible systems. From what I can see on the cyber channels, they’ve suffered no major ill effects so far.