The company is best known for producing Big Brother from 2000 to 2018 and Celebrity Big Brother from 2001 to 2018, according to Wikipedia.
Founded in 1994, Endemol Shine UK has about 800 employees. Of itself, it says: "Made up of a diverse range of companies and labels, including television production businesses, digital content producers and talent agencies the group produces over 1000 hours of content a year in the UK.
"In July 2020, Endemol Shine Group was acquired by Banijay, creating the world’s largest international content producer and distributor spanning 22 territories with over 120 production companies and a multi-genre catalogue boasting over 88,000 hours of original standout programming."
A lone email address was found on the company's website, but an inquiry about the incident sent to that address has not elicited any reply, even though it was sent on the morning of 27 November and the company was given time until 10am on Tuesday (1 December) to respond.
DoppelPaymer has been used in a number of attacks this year, with the world's second biggest laptop maker Compal hit this month. The University of Newcastle in the UK was another institution to be attacked.
Boyce Technologies, a company that used its engineering expertise to develop a ventilator in a month because it was needed in New York, also fell victim to cyber criminals who used DoppelPaymer to attack the company's infrastructure in August.
And Mitsubishi Paper, a company based in Germany, which is a part of Tokyo-based Mitsubishi Paper Mills, was attacked in June.