Full Breakdown
Wikipedia Faces Ongoing Antisemitic Editing Concerns, ADL Says
By Drooid · · How we work
Core Findings of the ADL Reports
The Anti-Defamation League (ADL) released *Editing for Hate* (2025) and *Damage Done* (2026). Both identify a coordinated effort by roughly 30 Wikipedia contributors to insert anti-Israel, antisemitic, and pro-Hamas narratives into the encyclopedia’s most-read pages. Wikipedia’s community imposed topic bans on six editors and site bans on three, yet the majority of the edits remain live. A 2026 review uncovered 19 active accounts still shaping Israel- and Palestine-related articles, using subtler techniques such as undoing other editors’ changes and hedging factual claims.
Background & Context
The ADL’s 2025 investigation first exposed a “coordinated campaign” that amplified anti-Israel bias across English-language entries for “Israel,” “Gaza war,” “October 7 attacks,” “Hamas,” “Zionism,” and “Jews.” After congressional scrutiny, visible coordination dropped dramatically—by an estimated 95 %—but a new cohort of editors has continued the work using less conspicuous methods.
Data & Statistics
- Edit volume: Account “Iskandar323” made 485 edits across six flagship pages, with 225 edits after the Oct 7 attacks.
- Content removal: On the “Gaza war” page, 17,000 characters and citations were deleted in November 2023, followed two days later by an additional 7,400 characters.
- Persistence of edits: Across six flagship articles, 91 % of a banned editor’s contributions remain live.
- Active accounts (2026): 19 editors still editing Israel-related topics; eight are unsanctioned members of the original group, while 11 are newly identified.
- Page traffic: The “Hamas” article attracted close to one million daily views at the time of the October 10, 2023 restructuring.
Official Statements & Responses
Daniel Kelley, senior director of the ADL’s Center for Technology and Society, called the lingering edits a “systematic issue” that violates Wikipedia’s neutral-point-of-view policy. The Wikimedia Foundation was contacted for comment but did not respond at the time of reporting.
Criticism & Opposition
The ADL argues that bans alone are insufficient when the underlying content remains unreviewed. Critics within the ADL note that the platform’s internal processes have allowed an “ideological narrative” to persist despite community actions, highlighting a gap between policy and practice.
Conflicting Reports & Gaps
The ADL notes a lack of systematic review of banned editors’ contributions and no public acknowledgment from the Wikimedia Foundation regarding remediation efforts. This absence leaves the extent of remaining bias uncertain.
Verbatim Quotes
- “A topic ban is great in theory, but in practice, if you're not doing it, if you aren't really taking action, there's really no ban at all,” — Jonathan Greenblatt, national director
- “Banning individual editors was never going to be enough. The pages that millions of people read, and that AI tools learn from, still bear the marks of a systematic disinformation campaign that Wikipedia itself has sanctioned but never cleaned up,” — Jonathan Greenblatt, national director
Recommendations & What’s Next
The ADL urges the Wikimedia Foundation to:
1. Verify the identities of editors working on contentious topics.
2. End anonymous IP-address editing on sensitive pages.
3. Create a dedicated task force on antisemitic bias modeled after the 2021 Holocaust-revisionism intervention.
For search engines and AI developers, the ADL calls for greater transparency when Wikipedia is used as a source, including editorial caveats for contested topics and bias-detection benchmarks. Policymakers are asked to continue oversight hearings, establish monitoring task forces, and develop policy options with input from technologists, Wikipedians, and civil-society leaders. The ADL also encourages the press and the public to verify citations and quotes generated by AI tools that draw on Wikipedia content.