YouTuber points out security flaws by climbing Brussels skyscrapers

4 March 2025

Belgian YouTuber DielsMK and three others have scaled two Brussels skyscrapers to highlight security weaknesses in government buildings. One of the buildings houses the Brussels employment agency Actiris, which has since filed a complaint.

The group climbed the 137m Iris Tower and the 107m Astr Tower and filmed footage of what they said was a secret mission. The video showed how easily they gained access - disguised as staff in one building and simply using a lift in another.

DielsMK insists the stunt was intended to raise awareness of security breaches. He said he had contacted the buildings to explain his intentions but was yet to receive a response. The group has previously climbed landmarks such as the Koekelberg Basilica and Antwerp Central station.

While a disclaimer said the footage was AI-generated, surveillance cameras and social media posts confirm its authenticity.

According to legal expert Sofie Royer of KU Leuven, prosecution is unlikely because no violence was used and no damage was caused. Previous incidents involving YouTubers, such as hiding in a church overnight, have resulted in community service rather than criminal charges.