“Sharing information is extremely helpful, but some large companies are now assuming that truly determined hackers cannot be kept out. So they are putting more emphasis on building resilience—the ability to bounce back fast in the event of a breach. It is essential to have well-conceived recovery plan to test it regularly, says Ed Powers of Deloitte, a consulting firm. In financial services, where a problem at one company could easily trigger a system-wide crisis, regulators are urging banks and other firms to consider resilience across markets.” —From the Cyber Security Special Report—Defending the Digital Frontier, The Economist, July 12,…