A major new study of British Jews has found significant changes in how the community views antisemitism, personal safety and Jewish identity in the three years since the October 7 massacre.

The research followed approximately 2,500 British Jews across multiple surveys, allowing researchers to compare the views of the same participants before and after October 7.

One of the sharpest changes involved antisemitism. Before October 7, 17 percent of respondents described antisemitism in Britain as a “very big problem.” That figure has since risen to 50 percent.

Feelings of safety have also deteriorated, with substantially more British Jews expressing concern about antisemitism and their security in the country.

Researchers also found a strengthening of Jewish identity and communal connection among many respondents following October 7, although this did not translate into a major increase in religious observance or synagogue attendance.

The findings provide a detailed picture of how three years of heightened antisemitism and concern over Jewish safety have affected one of Europe's largest Jewish communities.

At the same time, the research indicates that the impact has not been uniform, with differences emerging across age groups and religious backgrounds.

The study is based on repeated surveys of the same group of British Jews, giving researchers an unusual opportunity to measure how attitudes changed over time rather than simply comparing different groups of respondents.