Rumors were swirling that IBM would be acquiring database security company Guardium after the Israeli financial newspaper, TheMarker, reported the acquisition yesterday (translated version here ). Big Blue has officially confirmed that it has acquired Guardium but did not disclose financial terms. The Market reported that IBM is shelling out $225 million for Israel-based Guardium. A subsidiary of Log-On Software, Guardium provides technologies that ensure security of enterprise databases. The startup protects databases for Microsoft, IBM, Oracle, Sun Microsystems and other companies. The company’s technology is installed in more than 450 data centers worldwide. IBM says it will integrate Guardium within IBM's Information Management Software portfolio.