<ul data-eligibleForWebStory="false"><li>A cybercriminal threatens to release over 100GB of sensitive data allegedly stolen from Telefnica, a Spanish telecommunications giant.</li><li>The hacker, known as Rey, claims to have stolen 106GB of files, including internal communications, purchase orders, logs, customer records, and employee data during a data breach in May 2025.</li><li>Telefnica downplays the incident, stating the data is old and there was no new breach, despite Rey sharing a sample of the stolen data with the media.</li><li>Rey has threatened to release the full batch of data unless a payment is made, with evidence of files containing email addresses for employees and invoices for business partners from various countries.</li></ul>

Hacker threatens to leak a rumoured huge cache of stolen Telefónica data

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