Cisco is investigating claims of a data breach by hacker group IntelBroker, who reportedly stole a significant amount of developer data including source codes, login credentials and confidential documents. IntelBroker has allegedly posted some of the stolen data online as proof, and reportedly carried out large attacks on several firms in June. The methods used to access Cisco’s systems are yet unknown.

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