Data Breach Notices Hint at Proverbial Iceberg

d2d writes: The Data Loss Database has released a new feature: The Primary Sources Archive, a collection of breach notification letters gathered from various state governments as a result of data breach notification legislation. The documents include breaches that were largely unreported in the media, many of which are significant data loss incidents. This lends credence to the proverbial iceberg, where many incidents never break the surface. Now, thanks to the Open Security Foundation, we can 'dive' for them.