Massachusetts' Oak Associates Funds recently began notifying an undisclosed number of shareholders that their personal information may have been exposed when an "electronic device" was stolen between January 23 and 27 of 2014.

"We believe the electronic device was stolen for the value of the hardware rather than the data and we have no evidence at this time that your personal data has been misused as a result of this incident," Oak Associates chief compliance officer Sandra H. Noll wrote in the notification letter [PDF].

Still, the device held investors' names, addresses, e-mail addresses, phone numbers, Social Security numbers, and some account information including numbers, shares, balances, setup dates and contact instructions.

"We have reviewed internal controls and made changes to existing policies and procedures designed to prevent a recurrence of such an incident, and to protect the privacy of the Oak Associates Funds' valued clients," Noll wrote.

All those affected are being offered one year of free identity protection services through Experian's ProtectMyID Alert.

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