The attack was reported about a month back by the website Bleeping Computer, but without too many specifics.

The Milan-based company has 80,000 employees globally and had revenue of €9.493 billion (A$15.8 billion) in 2019, according to Wikipedia.

It designs, manufactures, distributes and retails its eyewear brands, including LensCrafters, Sunglass Hut, Apex by Sunglass Hut, Pearle Vision, Target Optical, Eyemed vision care plan, and Glasses.com. Its best known brands are Ray-Ban, Persol, and Oakley.

The company also manufactures sunglasses and prescription frames for designer brands such as Chanel, Prada, Giorgio Armani, Burberry, Versace, Dolce and Gabbana, Miu Miu and Tory Burch.

A screenshot from the dark web site for the Nefilim ransomware.

In a post on LinkedIn, a security official Nicola Vanin claimed there had been no data theft from Luxottica.

"a) There is currently no access or theft of information from users and consumers," he wrote in Italian, as translated by Bleeping Computer.

"b) Once the event was analysed, the clues were collected in less than 24 hours and the procedure for cleaning up the affected servers began. Work activities are gradually returning to normal in the #Milano plants and headquarters."

His claim obviously seems to be incorrect going by the data leak.

iTWire has contacted Luxottica for comment.