As federal judges endure threats increase, CBS News learned that some jurists face strange, disturbing events in which an unknown person ordered pizza to their home address, apparently trying to threaten them.

The Supreme Federal Attorney of Washington, D.C. called the incident "pizza doxxing," a spin on "doxxing," in which someone's address or other personal information is maliciously disclosed, usually as a form of intimidation.

In about twenty cases nationwide, the judge made delivery of thematic pizza with recipients listed as Daniel Anderl Dead son A New Jersey judge told CBS News in U.S. District Judge Esther Salas. Anderl was killed by a disgruntled gunman in 2020 Positioning Saras.

Salas said the cases attempted to engage in "psychological warfare" against the judge.

Salas said the perpetrator has not been identified. She plans to meet with U.S. Marshal Service officials on Thursday to discuss the threat.

A U.S. Marshals Service official told CBS News that the agency (handling judicial security) is "investigating all unsolicited pizza delivery to a federal judge and taking appropriate measures to resolve the matter."

At a press conference on Tuesday, outward U.S. Attorney Ed Martin of Washington, DC, said the "Pizza Doxsian" is also the focus of the U.S. capital's federal attorney's office, which is the jurisdiction where a large number of federal judges reside.

Mike Clark, a former FBI agent who leads the retired FBI Agents Association, told CBS News that the incidents appear to be to send threatening and sinister messages to judges.

"It's tempting tragedy and terrible to do so," Clark said.

Security analysts have previously warned of “pizza doxxing” or scams, which could also be a technology to attract public officials to his or her front door to confirm the address they may attack in the future.

Threats against judges have been increasing in recent years, as part of a broader trend for public officials. The U.S. Marshal Service recorded more than 450 threats to federal judges in 2023, an increase of more than 300 from 2019, and the threat to prosecutors has also grown rapidly during the same period, and CBS News has grown rapidly during the same period Previous reports.

"I'm worried about judicial officials who have to make tough decisions, they have to make decisions that may not be welcome to some," Salas said in another interview with CBS News in March. She also quoted "the inflammatory rhetoric and language that has a position of power with a large platform."

"These are dangerous combinations because...we don't know that it will make someone stand out," she said. "I'm the evidence of being alive. My son isn't here anymore."