Louis Vuitton, owned by French giant LVMH, is the latest retailer to suffer a cyber-breach in a recent flurry of attacks that previously compromised Marks & Spencer, the Co-Op and others. The cybercriminals have accessed Louis Vuitton’s customer data not only in the UK but also in Turkey and Korea. According to Louis Vuitton, the hackers were sitting on its systems for a full month before the intrusion was discovered.