Four ex-SAS bodyguards are protecting Harry Potter star Daniel Radcliffe after receiving a death threat from a stalker.

Worried movie bosses have assigned heartthrob Daniel, 18, the security. He switched cars three times on Saturday night during filming of the sixth movie Harry Potter and the Half-Blood Prince. And his regular driver — used by the star for seven years and considered “part of the family” — has been temporarily stood down.

The nature of the threat, received via Warner Bros, is unclear. But a security source said bosses are treating it seriously and ordered his protection at all times on set and to and from shoots.

The insider added: “There is a real concern for Daniel’s welfare. The bigwigs haven’t said what has been going on. It’s all hush-hush — but security has been massively ramped up.”

I think I now know the reason why Miley Cyrus has turned into Hollywood’s youngest whore. It seems that she has been crushing on Ashlee Simpson’s ex Ryan Cabrera. The 15-year old ‘Hannah Montana’ star told Us Weekly that she thinks he’s really cute and adds that Ryan is a friend on her dad’s. Does that mean that Billy Ray approves of the 25-year old singer? I think that’s why Miley’s dressing up like a 40-year old hooker lately – too not look much like jailbait. It’s not like Ryan is going to dump Elvis Presley’s granddaughter Riley Keough for Miley anyway. She has to stop dreaming.