The L.A. Gay & Lesbian Center recently learned that the security of certain of our information systems was compromised by a criminal cyber attack apparently designed to collect social security numbers , credit card numbers and other financial information . Between November 22 , 2013 and December 3 , 2013 our forensic investigators confirmed that this attack potentially exposed certain of your information to unauthorized access and acquisition . I say potentially because , to date , there is no evidence that any information was actually accessed or acquired as a result of this criminal invasion . However , the information potentially exposed may have included your name , contact information , medical or healthcare information , date of birth , credit card information , Social Security number and health insurance account number . Based upon our investigation , the period during which your information may have been exposed appears to have been between September 17 , 2013 and November 8 , 2013 . Out of an abundance of caution , we want to make you aware of the attack and our efforts to help safeguard your information . Immediately upon learning of this criminal attack and the potential exposure of private patient information , the Center took action . Specifically , upon learning of the potential of this incident , we promptly took the following actions : ( i ) curtailed the intrusion ; ( ii ) hired numerous experts , including two leading national forensic investigation firms , to help us investigate the situation and determine the individuals and information potentially affected ; and ( iii ) began the process of notifying potentially affected individuals . In addition , we have notified law enforcement and are taking steps to further guard against this type of criminal attack in the future . As always , we recommend that you remain vigilant by reviewing your explanation of benefits for medical services and financial account statements , as well as free credit reports for unauthorized activity . From the moment we learned of the potential exposure , our primary concern has been ensuring that you are protected against risks related to this incident . Therefore , we have engaged Experian , one of the leading providers of credit monitoring products , to provide you with its ProtectMyID Alert membership , including credit monitoring , for one year at no cost to you . Enclosed with this letter is information regarding these services and instructions for enrollment , as well as an insert providing additional useful information regarding steps you can take to protect yourself against identity theft . We have also engaged Experian to provide a dedicated call center to answer questions about this incident . If you have any questions regarding this incident or would like assistance enrolling in ProtectMyID Alert , please contact the Experian call center at 888 - 451 - 6562 from 6:00 AM to 6:00 PM , Pacific Time , Monday through Friday , or 8:00 AM to 5:00 PM , Pacific Time , Saturday and Sunday . ;