Oregon-based Providence Health Plan has notified 122,000 members that their information may have been exposed in a data breach at the provider's administrator Dominion National, according to The Oregonian.
Dominion National discovered in April that an unauthorized party may have accessed its computer servers and personal information. While Dominion National does not know when the hackers gained access to its system, the company said it may have started in 2010.
Providence has only been using Dominion National as an administrator since 2015. Nationwide, the Dominion National data breach could affect around 2.9 million people whose insurance plans use the company as an administrator.
Member information that may have been exposed included names, addresses, dates of birth, Social Security numbers and insurance information.
Dominion National's Vice President of Marketing Jeff Schwab could not comment on the nature of the breach, why it may have spanned so long and why it took four months to notify clients, according to The Oregonian.
The administrator is recommending members monitor their insurance statements and explanation of benefits.