Bartell Hotels announced that they had detected possible unauthorized access by an attacker to their customers' financial data.
The card payment processing systems used at five Bartell Hotels had been compromised.
The five hotels affected are: Best Western Plus Island Palms Hotel & Marina, The Dana on Mission Bay, Humphreys Half Moon Inn & Suites, Pacific Terrace Hotel and the Days Hotel-Hotel Circle.
The official announcement states that the security breach occurred between February 16, 2014 and May 13, 2014. The breach involved the theft of certain credit card information, including customer names and credit card numbers.
According to SC Magazine, the data breach affected between 40,000 and 45,000 people. About 16,000 people who provided email addresses to Bartell were notified of the incident.
The company is offering free credit card monitoring and identity protection to affected individuals.
