1998: Martin Roesch makes a program called Snort, which "sniffs out" network hackers and viruses, available for free online.
2001: Roesch founds Sourcefire in his Carroll County living room in order to produce a commercial version of Snort.
October 2005: Check Point Software Technologies Ltd., an Israeli company, announces plans to acquire Sourcefire for $225 million.
March 2006: Check Point abandons the acquisition after a federal panel begins investigating the deal. Federal officials opposed the...