After stealing data from 56 million payment cards between April and September 2014, hackers who infiltrated the network of Home Depot Inc., also obtained the e-mail addresses of 53 million customers. The retailer said that the files containing the email addresses did not contain passwords or other sensitive information, but customers should still be on guard against phishing scams. Retailer will notify affected customers in the US and Canada, and provide an update on the on-going investigation into breach it is conducting with law enforcement and third-party IT experts. Home Depot has accelerated the rollout of enhanced payment data encryption technology from Voltage Inc., started in January 2014. The rollout was completed in all the stores of the United States by September 13, 2014 and will be completed in all the Canadian stores by early 2015.