Prince William lives in Fort after the stalker attack

But insiders say that the illusion of safety in the countryside has now been crushed.

“Adelaide Cottage was supposed to be a refuge,” said our source. “Now there is a hair -raising feeling that they are still being viewed, even beyond.”

Royal officials reportedly also assess the public access routes around the estate.

While Windsor Castle remains open to visitors, limited zones are being controlled more closely.

“We see a shift to Fort-like protocols,” said a former Royal Protection Officer. “There is no hunger for risks – especially with the young children of the heir involved.”

The situation has fueled comparisons with the constant legal struggle of Prince Harry for royal security.

Earlier this year, the 40-year-old lost a profession to restore the entire police protection during visits to the UK.

Harry, who now lives in California with Meghan Markle, 43, and their children Prince Archie, 6, and Princess Lilibet, 4, have expressed concern about safety after the resignation of official tasks.

“Security is a hot-button problem within the family,” said the insider. “What happened at Windsor has made it even more urgent.”