FORTUNE — It takes a lot to unseat a chief executive officer who has spent his entire career — 35 years — with his company. But the exposure of 110 million customers’ personal and payment data does the trick, apparently.
Following an attack by hackers who captured customer information this past holiday season, Target Corp. (TGT) CEO Gregg Steinhafel is out after resigning Monday. The retailer’s current chief financial officer John Mulligan will temporarily replace Steinhafel. While the data breach was likely the main impetus for Steinhafel’s ouster, Mulligan and whoever comes in as Target’s permanent CEO have a lot more than cybersecurity issues to worry about.
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