Cyber Incident Victim: Câmara Municipal de Arceburgo
Date:
May 2025
Location:
Brazil
Summary
Hackers, possibly motivated by pro‑Palestinian sentiments, breached the website of the Câmara Municipal de Arceburgo, disabling its online services and displaying a protest message concerning the death of a Palestinian‑Brazilian citizen in the Hamas‑Israel conflict while implying the council’s endorsement of that message. The intrusion, detected by the site’s outsourced server provider, forced the council to rely solely on its official Facebook and Instagram accounts for communication until technical teams restored the portal, which returned to normal operation without loss of data or access.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 2 techniques |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
On the morning of Saturday, May 17, 2025, a group of hackers, described in the report as possibly pro‑Palestinian, breached the website of the Câmara Municipal de Arceburgo. The intrusion caused the municipal chamber’s online portal to become inaccessible, disrupting all online services hosted on that site. As part of a broader wave of cyberattacks targeting public institutions in the region, the attack also affected the site of the Prefeitura de Arceburgo, although the article notes that the chamber’s portal was the exclusive target of this particular incident. Visitors to the chamber’s website encountered a protest message concerning the death of a Palestinian‑Brazilian citizen in the conflict between Hamas and the Israeli armed forces, with the hackers implying, albeit apocryphally, that the chamber endorsed the message. Consequently, the chamber’s official Facebook and Instagram accounts remained the sole means of communication for the public while the website was offline.
The compromised connection was identified by the outsourced server provider that hosts the chamber’s portal, which detected the cyber intrusion. Upon being notified, the Câmara Municipal de Arceburgo launched a coordinated response involving legal, technical, and administrative actions aimed at restoring the service as swiftly as possible. Technical teams were engaged to assess the extent of the breach and to work on remediation while the site remained temporarily unavailable. By the following day, Sunday, May 18, 2025, the portal had been returned to normal operation, with the article stating that no data loss or impairment to access or files occurred. The restoration marked the end of the disruption, and the chamber’s online services resumed their regular availability.