Summers Estate Wines, a California-based winery, disclosed a data breach involving its third-party sales provider, Missing Link Networks, Inc. The incident occurred between April 1 and April 30, 2015, exposing customer names, credit/debit card numbers, payment addresses, passwords, and dates of birth. The breach was discovered on May 27, 2015, and notification letters were sent to affected customers on June 11, 2015. The incident has been contained, and Missing Link upgraded its security systems.