Millions of Target shoppers woke up Thursday to news headlines that their credit or debit card information may have been compromised in the last month while shopping at the massive retailer.
Target, which confirmed the breach, said as many as 40 million accounts may have been impacted, and that the that the attackers behind the breach were active between November 27 and December 15.
CSO's news team is carefully following the developments of this story as it unfolds. Here is a comprehensive guide from CSO writers and contributors of news and analysis about the Target breach.