Insulating glazing unit with an alarm loop comprising at least: a spacer between a first prestressed or partially prestressed pane and a second pane, an outer gap filled with an organic polysulfide between the first prestressed or partially prestressed pane, the spacer, and the second pane, an alarm loop applied on the first prestressed or partially prestressed pane, a first electric contacting surface applied on the first prestressed or partially prestressed pane in the outer gap and a second electric contacting surface, wherein a. the first electric contacting surface and the second electric contacting surface are connected via the alarm loop, b. the first electric contacting surface is connected via a first cable end piece, and the second electric contacting surface is connected via a second cable end piece to a power connecting cable, characterized in that c. the first electric contacting surface and the first cable end piece as well as the second electric contacting surface and the second cable end piece are sheathed by polyisobutylene with a layer thickness of at least 1 mm, and d. the alarm loop, the first electric contacting surface, and the first cable end piece as well as the second electric contacting surface and the second cable end piece are sheathed with polyisobutylene within the outer gap. a spacer between a first prestressed or partially prestressed pane and a second pane, an outer gap filled with an organic polysulfide between the first prestressed or partially prestressed pane, the spacer, and the second pane, an alarm loop applied on the first prestressed or partially prestressed pane, a first electric contacting surface applied on the first prestressed or partially prestressed pane in the outer gap and a second electric contacting surface, wherein a. the first electric contacting surface and the second electric contacting surface are connected via the alarm loop, b. the first electric contacting surface is connected via a first cable end piece, and the second electric contacting surface is connected via a second cable end piece to a power connecting cable, characterized in that c. the first electric contacting surface and the first cable end piece as well as the second electric contacting surface and the second cable end piece are sheathed by polyisobutylene with a layer thickness of at least 1 mm, and d. the alarm loop, the first electric contacting surface, and the first cable end piece as well as the second electric contacting surface and the second cable end piece are sheathed with polyisobutylene within the outer gap. a. the first electric contacting surface and the second electric contacting surface are connected via the alarm loop, b. the first electric contacting surface is connected via a first cable end piece, and the second electric contacting surface is connected via a second cable end piece to a power connecting cable, c. the first electric contacting surface and the first cable end piece as well as the second electric contacting surface and the second cable end piece are sheathed by polyisobutylene with a layer thickness of at least 1 mm, and d. the alarm loop, the first electric contacting surface, and the first cable end piece as well as the second electric contacting surface and the second cable end piece are sheathed with polyisobutylene within the outer gap.