Computer hackers are increasingly tailoring attacks using Trojan horse programs for certain businesses in hopes of filching intellectual property, a new security report released Thursday said. MessageLabs Ltd. said its latest research data shows these kinds of attacks have risen six-fold over the same period in 2005. While the increase is dramatic, the number of attempts remains low: The targeted attacks are occurring about once a day rather than one or two per week in 2005, the company said. Full Story