Pippa Middleton
Pictured: Pippa Middleton at WimbledonReuters

Kate Middleton's sister Pippa Middleton's iCloud account has been hacked and the hackers claim to have more than 3,000 private photos of her and the royal family.

The news came to light after the hacker contacted The Sun on Thursday and demanded a "minimum of £50,000" for the intimate photos and personal data stolen from her iCloud account. The hacker told the Sun that he has 3,000 private photos of Pippa.

The hacker sent the mail to the leading publication through a sophisticated encryption service. He said he has nude photos, Pippa's wedding details, and photos of the royal family.

- Photos of Pippa in her wedding dress that might have been taken during the fitting of the dress, details of the guest list and venue

- Nude photos her millionaire fiancé James Matthews.

- Photos of her sister Kate and brother-in-law Prince William, Princess Charlotte, Prince George and royal family

- Intimate photos of Pippa with her fiancé James

- Photos of Pippa and friends partying

The mystery man also sent a couple of photos of Pippa, which appeared to have been taken during the wedding dress fitting session, and a photo of her mother Carole in the aisle of the couple's church wedding venue. Not only photos, the hacker also has access to Pippa's private chat.

The Sun declined the offer and notified Pippa about the same. Pippa and the royal aides are investigating the leak amid fears that the intimate photos of Middleton and the royal family could go online.

"Thank you very much for drawing this to the family's attention. I can confirm that not only have the lawyers been informed but the police are about to be involved as well," Pippa and James' spokesperson said.

A source told US Weekly that Pippa is relieved that the matter was brought to her notice before the photos and other details went online. "Pippa is relieved that this didn't become the nightmare it could have been. It's been scary to find out how easy it is to hack these things," the source said.