I don't know. I have thought about that too. Local bank branches might even shutter because all the staff might be out sick. Even if you wrote a check to your landlord he might not be able to cash it if the banks shut down or the ATMs are not working or have no cash to dispense because the people that service them are out sick with the corona virus. Also internet service may go down if there are no IT staff to keep things running smoothly. We still need humans to keep things running properly.