Andrew Mountbatten-Windsor’s terrifying encounter left Prince Harry shaken.  

After the former Duke of York was reportedly accosted by a masked man near his Sandringham residence, an insider claimed his nephew is in fear that the same thing could happen to him.

“Harry was horrified,” a source told Rob Shuter’s Naughty But Nice Substack.

Prince Harry attends an Invictus Games Anniversary service in 2024. By: Anfisa Polyushkevych/MEGA

“If someone can get that close to Andrew near a royal estate, then nobody is truly protected anymore,” the insider said.

“Harry believes this validates everything he’s been saying,” the source claimed.

Following Harry and Meghan Markle’s exit from The Firm, the couple’s government-funded security was taken away.

“He keeps asking what stops the same thing from happening to Meghan or the children,” the insider pointed out.

Meghan Markle and Prince Harry visit Sussex in 2018. By: Danny Martindale/MEGA

Despite Andrew’s involvement with Jeffrey Epstein, the Spare author still believes he should have the right to safety protections.

“Harry does not defend Andrew personally,” the source noted. “But he believes royals are permanent high-risk targets regardless of public opinion.”

According to the police, the 66-year-old was walking his dogs around his property when Alex Jenkinson aggressively approached him.

The man was charged with two counts of using threatening, abusive, or insulting words or behavior to harass, cause alarm, or distress and failing to provide a blood specimen in custody.

Andrew Mountbatten-Windsor attends the RAF centenary ceremony in 2018. By: MEGA

Jenkinson pleaded not guilty to the counts of using threatening, abusive, or insulting words or behavior to harass, cause alarm or distress.

The scary situation comes months after Andrew was stripped of his titles and evicted from Royal Lodge over his ties to Epstein.

In February, the father of two was arrested on suspicion of misconduct in public office for allegedly giving the late criminal information while he was the U.K.’s trade envoy.