<A target="_blank" href="http://www.pcworld.com/article/224147/massive_epsilon_email_breach_hits_citi_chase_many_more.html#tk.rss_news">Hackers have obtained millions of e-mail addresses for customers</A> of several banks, Walgreens, Marriott Rewards, and others. It is expected the addresses will be used for targeted phishing attacks in the coming months.