The Clop ransomware gang has named 59 organisations it allegedly hacked by exploiting a vulnerability in file transfer tools developed by US software firm Cleo. The Russia-linked group threatened to publish stolen data unless ransoms are paid. German company Covestro has confirmed a breach, while other firms named in the list deny they were compromised. Clop may add more victim organisations to its dark web site on 21 January.

Louis Vuitton says UK customer data stolen in cyber-attack – The Guardian
Summarize this content to a maximum of 60 words: Louis Vuitton says UK customer data stolen in cyber-attack The Guardian