Clif Bar Family Winery & Farm, LLC reported a data security incident involving its third-party ecommerce provider, Missing Link Networks, Inc. (MLN). The breach affected payment card transactions from April 1-30, 2015, potentially exposing names, payment card numbers, addresses, and dates of birth. MLN notified the winery on May 27, 2015, fixed the breach, and notified law enforcement and card networks. Consumer notification letters were sent on June 10, 2015.