Staples investigating theft of payment card data
Office supply superstore Staples is investigating possible payment card data thefts, according to reports.
A blog report by security expert Brian Krebs has suggested that several of its stores in north-east America have been affected by a breach.
If correct, it would make Staples the latest in an increasingly long line of US retailers to have been targeted by hackers.
The US government has called for a swift move to chip-and-pin technology