** Hasbro HAS.O shares fall 2.6% to $91.08 premarket after toymaker discloses it identified unauthorized access to its network on March 28
** Company says it has taken some systems offline and was using temporary measures to keep taking orders and shipping products
** Warns interim measures to maintain operations may last several weeks and can result in some delays
** Hasbro says it is reviewing potentially impacted files and may make additional notifications as required
** As of last close, HAS stock up about 14% YTD
(Reporting by Tharuniyaa Lakshmi in Bengaluru)
((tharuniyaa@thomsonreuters.com))