[Osiris]

Microsoft says that hackers are exploiting a hole discovered in Excel that could compromise your PC and allow hackers to execute remote code.

Microsoft said the risk is “limited” since the malicious code has not been widely disseminated. “At this time, we are aware only of targeted attacks that attempt to use this vulnerability,” Microsoft Security Advisory 947563 said.
News Source: http://www.hardocp.com/

New Security Hole Discovered in Excel : Welcome To Tech-Dump