Shoe discounter DSW Inc. has agreed to settle Federal Trade Commission charges that its failure to take reasonable security measures to protect sensitive customer data was an unfair practice that violated federal law. According to the FTC, DSW’s data-security failure allowed hackers to gain access to the sensitive credit card, debit card, and checking account information of more than 1.4 million customers. The settlement will require DSW to implement a comprehensive information-security program and obtain audits by an independent third-party security professional every other year for 20 years.