Target, Inc.

Target early Thursday confirmed widespread media reports that it suffered a major data breach that affected as many as 40 million credit and debit card transactions during a period that began the day before Thanksgiving through December 15.

Target’s online traffic continues to grow at double-digit rates, with mobile sales growing more than 100% for the holiday period.

Target was the most-browsed mobile app/site in 2013, and Apple’s mobile app/site is where consumers purchase the most, according to a new study from Mobiquity.

Target has unveiled a section of its website that features products that are trending on hot social media site Pinterest.

The Target Awesome Shop is a shoppable catalog that features a curated crop of products from several lines, including beauty, each of which is among those most pinned on Pinterest in the last few days, but only if they have at least a four-star guest review.

Walmart chief marketing and merchandising officer Duncan Mac Naughton told investors during an October meeting that the retailer would have the largest share of voice during the holiday season and that was certainly evident during November, according to data released this week from Kantar Media Ad Intelligence and Placed.

Unprecedented shopper traffic was seen at Target on Black Friday, according to president, CEO and chairman, Gregg Steinhafel, who also said the retailer provided exceptional service without offering much insight into sales.

Given the overwhelming emphasis on e-commerce, mobile apps and digital initiatives this holiday season, Target offered a trip down memory lane on its website, where it showcased some interesting marketing efforts.

Target spent an estimated $28 million on advertising November 3-7, which netted it nearly 12% of retail traffic during Thanksgiving weekend, according to data released this week from Kantar Media Ad Intelligence and Placed.