Cyber Threat Actor: Anonymous Belgian

Anonymous Belgium, also known as Anonymous Belgian, is a hacktivist collective that operates from Belgium and has been identified primarily through its use of the Anonymous Belgium and Anonymous Belgian aliases. The group emerged publicly in October 2015 when it claimed responsibility for a series of distributed denial‑of‑service attacks against several Belgian government websites under the banner of operation #OpGuerilla. In its statements and accompanying media, the collective framed the actions as a response to alleged government censorship and corruption, indicating a hacktivist motivation rather than financial gain or espionage. No public evidence links the actor to a state sponsor or a criminal consortium, and its affiliation remains limited to the broader Anonymous movement as expressed through its own communications.

The group’s targeting has been confined to Belgian governmental institutions, specifically the official site of the Prime Minister, the Brussels parliament portal, and the Federal Public Services Home Affairs website. These targets reflect a focus on the public sector within the national region, with the strategic objective of causing temporary disruption to online services as a form of protest. The observed tactics, techniques, and procedures consist mainly of volumetric DDoS attacks designed to overwhelm web servers and render sites inaccessible; the group announced its actions via Twitter and substantiated its claims with a YouTube video that described the operation and its rationale. No malware families, exploit kits, or specific initial access vectors are referenced in the available reporting, and the activity appears limited to network‑level flooding rather than intrusion or data exfiltration.

The most notable campaign attributed to Anonymous Belgium is the #OpGuerilla operation conducted on 11 October 2015, during which the collective executed coordinated DDoS strikes that temporarily knocked the Prime Minister’s website, the parliamentary site, and the Home Affairs portal offline. According to contemporaneous reports, all affected services were restored shortly after the attacks, and the group declared responsibility through social media posts and a video message that outlined its grievances against perceived governmental misconduct. Beyond this incident, no further publicly documented operations or additional TTPs have been ascribed to the actor, leaving the profile defined by this single, well‑reported hacktivist event.