A reason for keeping cash as it is not longer academic that our ATMs might fail sometime and you do not know how long they need to bring the systems back online. Governments are afraid to offer this advice and so you just have to be smart to look after yourselves. Remember an attack is designed to cripple and not just inconvenience us. Just doing for cash what you do for some staples in case of a civil emergency.
By the way, I think structurally a profit maximizing electric utility like ours is making us more vulnerable than a nationalized government owned one. So we spent big on military systems but leave this flank vulnerable. Not clever at all.
Recall how two ang mohs easily cut through the fence and spray painted the trains. Why, security doesn't help the top line and is a tax on the bottom line. We shouldn't be surprised.
I've just been at a four-day conference on cyber-security, and I'm leaving terrified. Security experts warn of a risk of a digital 9/11 that attacks the electrical grid and banking system (similar to the Stuxnet attack on Iranian centrifuges by US and Israel). China seems a leading player in cyber intrusions, sometimes by private hackers and sometimes by the People's Liberation Army. All very sobering.
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