When this story originally broke, I was under the impression that 911 victims had possibly been hacked maybe a few years *after* the attack. Now the suggestion – reported by the Daily Mail out of the UK – is that no, the hacking attempts began the day of the attack. From the CNET article:
Until earlier this week, the U.S. had remained out of the scandal in Britain surrounding News Corp. over cell phone hacking. However, the Daily Mail in the U.K. reported on Monday that News Corp.-owned News of the World, a British tabloid, had contacted a private investigator and former New York police officer to try to hack phone data of British victims of the September 11 attacks. The Daily Mail said that the investigator, who was contacted in the wake of the horrific event, refused to do so.