Maryland has amended its breach notification
law to require businesses that maintain data, not just
those that own or license the data, to conduct "a reasonable
and prompt investigation" into whether personal information
has been or will be misused. This requirement will go into effect
in October 2019. Starting then, vendors who maintain information
will also have a duty to investigate, not just data owners. This is
unlike other states with "duty to investigate"
requirements, like Connecticut, Delaware, New Hampshire, and
Wyoming, among others. In those states (and others), only the data
owner is statutorily required to investigate. To the extent that
vendors have been obligated to investigate, that obligation falls
under other provisions of breach notice laws, namely requirements
for the vendor to "cooperate" with the data owner. Or, in
some cases, companies may have contractually required their vendors
to conduct investigations in the event of a breach or