Latest’s news claims that more than 760 organizations, 20% of them Fortune 100 companies, may have been compromised by RSA’s data breach in March 2011, according to a report on Krebsonsecurity.

Facebook, Google and Cisco Systems are just a few of the many organizations that were targets of malware using the same command and control (C&C) infrastructure as that used in the RSA attacks, according to the report, though critical information on how the data was compiled and its source was not provided.

Note that Krebsonsecurity does not reveal (yet) its sources so the information below should be treated carefully for now.