If an airline's Operations Centre gets compromised, duties are moved to a separate, back-up, location. Likewise, if a dispatcher's work from home setup gets compromised, it shouldn't be difficult for someone else (whether at the airline's office or another work-from-home dispatcher) to temporarily takeover. Just because laptop batteries can't last an entire shift (some laptops do), it doesn't mean it can't last long enough to maintain critical flight monitoring functions while other, more abled workstations elsewhere, take over. I don't get why this is such a hard concept to understand.