Phil Ronan writes: Scotland Yard says police have arrested a 15-year-old boy in connection with the recent hack on UK phone and internet provider TalkTalk. Authorities are in the process of questioning him and conducting a search of the house he lives in. TalkTalk now says the breach was smaller than it thought, and full credit card details are not at risk. "Dido Harding said any credit card details taken would have been partial and the information may not have been enough to withdraw money 'on its own.' Card details accessed were incomplete — with many numbers appearing as an x — and 'not usable' for financial transactions, it added." In other news, businesses leaders are calling on the government to take "urgent action" against cyber-criminals, because somehow the security of their online systems is the government's responsibility, not theirs.