After our recent discussion of decimal/hexadecimal confusion at the turn of 2010, alphadogg writes in with a Network World survey of wider problems caused by the date change. "A decade after the Y2K crisis, date changes still pose technology problems, making some security software upgrades difficult and locking millions of bank ATM users out of their accounts. Chips used in bank cards to identify account numbers could not read the year 2010 properly, making it impossible for ATMs and point of sale machines in Germany to read debit cards of 30 million people since New Year's Day, according to published reports. The workaround is to reprogram the machines so the chips don't have to deal with the number. In Australia, point-of-sales machines skipped ahead to 2016 rather than 2010 at midnight Dec. 31, rendering them unusable by retailers, some of whom reported thousands of dollars in lost sales. Meanwhile Symantec's network-access control software that is supposed to check whether spam and virus definitions have been updated recently enough fails because of this 2010 problem."