B.C. libraries have been targeted by a hacker who demanded a ransom or they would release user data that includes the phone numbers and email addresses of some clients.

The Cariboo Regional District says its library was among those involved, and data was obtained about users who received automated notifications from the library between March 27 and April 19.

The BC Libraries Cooperative says “minimal data” from its email server was obtained.

“Regardless of any limitations on data breached, we regret this breach happening at all,” the co-operative statement says.