Paris Opens Cyberattack Investigation Into Social Democratic Primary Voting Platform

An electronic voting platform used for a French social-democratic primary faced a cyberattack on Oct. 9, 2026, forcing organizers to extend the voting period, according to bfmtv.com, fr.euronews.com, and france24.com.

Paris Prosecutor Opens Cybercrime Investigation Into Voting Platform Attack

The Paris prosecutor’s office opened an official judicial inquiry on Oct. 9, 2026, following the cyberattack against the social-democratic primary website, bfmtv.com reported. The cybercrime section of the prosecutor’s office entrusted the investigation to the Anti-Cybercrime Office, known as Ofac, which operates under the national police.

Investigators opened the case under preliminary charges of obstructing the operation of an automated data processing system, accessing and maintaining a presence in such a system, modifying an automated data processing system, and participating in a criminal conspiracy aimed at preparing a crime punishable by at least five years of imprisonment, according to bfmtv.com.

Bots Create Massive Connection Flood to Disrupt Left-Wing Primary

The cyberattack began at 8:00 a.m. on Oct. 9, 2026, right as the electronic voting platform opened, fr.euronews.com reported. Organizers stated that the attack involved driving simultaneous connections to their maximum limit using automated bots.

The massive and artificial influx of connection requests created significant slowdowns and bugs on the site, preventing a portion of voters from accessing the platform, according to bfmtv.com and france24.com. Despite the disruption, the commission of organization emphasized that the platform was never completely interrupted and that the vote continued without a complete outage, fr.euronews.com reported. The commission also asserted that the integrity of all recorded votes remained uncompromised.

Organizers Extend Voting Deadline After Turnout Slows Down

Due to technical hurdles caused by the bot traffic, only 20,000 out of 140,000 registered voters had cast their ballots by 7:00 p.m. on Oct. 9, 2026, according to france24.com and fr.euronews.com. Commission president Patrick Mennucci noted that voting resumed normally by 6:45 p.m. that evening, according to france24.com.

To compensate for the lost time, organizers pushed back the closing deadline from Saturday evening to Sunday at 6:00 p.m., bfmtv.com reported. By 6:00 p.m. on Oct. 10, 2026, participation reached 101,243 voters out of the 140,000 registered participants, according to bfmtv.com.

Five Candidates Vie for Left-Wing Presidential Nomination

The electronic primary aims to designate a candidate for the social-democratic left in the upcoming presidential election, according to fr.euronews.com and france24.com. Five contenders are competing in the race: European Parliament member and Place publique figure Raphaël Glucksmann, Socialist Party leader Olivier Faure, former 2007 presidential candidate Ségolène Royal, Republican and Socialist Left deputy Emmanuel Maurel, and Socialist deputy Jérôme Guedj, as detailed by fr.euronews.com.

Political organizations participating in the primary strongly condemned the incident. Political parties involved in the primary strongly condemn this attempt to disrupt the democratic process and are taking legal action regarding this serious attack on a democratic process. fr.euronews.com reported.