Doxing Jewish and Pro-Israel Organizations Helps Antisemites Hunt Jews

Lists of Jews and Jewish businesses have a grim history, particularly in Europe.

Following pressure from organizations combating antisemitism, last week, French-based mapping platform GoGoCarto removed a map cataloging more than 150 Jewish and Israeli-linked businesses in Catalonia, Spain.

Maps of Jews aren’t merely encyclopedic exercises; they are invitations to violence.

An anonymous group compiled what it called a “collaborative map of the Zionist economy in Barcelona.” The list featured kosher restaurants, a Jewish school, and multinational companies linked to Israel, such as Airbus, Microsoft, and Siemens.

Organizations fighting antisemitism warned GoGoCarto that the map violates French laws against incitement to hatred and discrimination.

Combat Antisemitism Movement’s director of European affairs argued that the map “echoes some of the darkest chapters in history, including the prelude to the Holocaust in Nazi Germany.” But one needn’t look to the Nazis to realize the danger of tracking Jews.

Just last month, ISIS supporters gunned down 15 people — including a 10-year-old girl — who were attending a large Hanukkah celebration at Bondi Beach in Sydney, Australia. Organizers advertised the annual celebration publicly, including the event’s location. The Bondi terrorists used this information to kill Jews.

The threat of violence is why Jewish and pro-Israel events often refrain from publicly posting the location of their gatherings. It is also why most synagogues and Jewish schools have armed security to protect attendees. Wherever Jews gather, they are targets.

And the number of Jews that have been killed worldwide since Oct. 7, 2023, would be much higher if all the thwarted attacks had not been stopped.

For example, shortly after the Bondi massacre, Canadian authorities announced that they had arrested three individuals from Toronto for trying to kidnap women and Jews. Months earlier, in June, Canada extradited to the United States Pakistani citizen Muhammad Shahzeb Khan, after he “attempted to enter the United States to carry out a deadly terrorist attack on a Jewish center in New York City” using “semiautomatic weapons.”

But Khan didn’t have to cross the border to kill Jews and supporters of Israel. And he didn’t even have to compile a list of targets. Canadian editor of the online publication The Maple, Davide Mastracci, who has claimed that “Zionism has a stranglehold on our political system,” has already done that.

In March 2025, Mastracci created “Find IDF Soldiers,” a website dedicated to cataloging Canadians fighting in the Israel Defense Forces (IDF). In December, he released a follow-up, “GTA to IDF,” which lists seven schools, synagogues, and summer camps in the Greater Toronto Area that have had members serve in the IDF.

Mastracci explains that he is compiling this information because, “Canadians deserve to know who they [Canadians who have served in the IDF] are, the networks they’re a part of that may have influenced their decision to join the military and what they’ve done since returning to Canada.”

Mastracci claimed that the “information isn’t being collected and republished here to encourage any harassment of the institutions named.”

It seems that Mastracci doth protest too much.

A joint report from the Jewish Agency for Israel and the World Zionist Organization found a 340 percent increase in antisemitic incidents in 2024 compared to 2022. This has included violent attacks, overnight shootings at Jewish schools, vandalized synagogues, and discrimination.

Given the explosion of antisemitism in Canada since October 2023, publishing lists of Jews and Jewish organizations associated with alleged Israeli crimes is hardly an exercise in informing the public. It’s more like throwing a lighter to an arsonist.

Even the BDS Movement, the official organization spearheading the campaign to boycott and eliminate Israel, seemed to recognize this in 2022. When activists in the Boston area launched The Mapping Project to depict “local institutional support for the colonization of Palestine,” the BDS Movement disassociated itself with the endeavor, noting the devastating effect it had on the “Palestine solidarity movement.”

Doxing Jewish and Israel-related organizations will make Jews unsafe and will link pro-Palestinian activism to Nazi tactics of the 1930s. Mastracci’s projects may not meet the threshold for criminal incitement to violence in Canada, but they are certainly tools that will help antisemites hunt Jews.

David May is a research manager and senior research analyst at the Foundation for Defense of Democracies (FDD). For more analysis from the author and FDD, please subscribe HERE. Follow David on X @DavidSamuelMay. Follow FDD on X @FDD. FDD is a Washington, DC-based, nonpartisan research institute focusing on national security and foreign policy.