Box blanks, boxes, and corresponding methods of forming the same are provided. The box blank comprises a plurality of panels and bottom flaps. Each of the plurality of panels and the plurality of bottom flaps are connected along a foldable section score line. The plurality of panels are connected to the plurality of bottom flaps along a panel score line. At least one web pattern score extends in one of the plurality of bottom flaps comprising a first score line and a second score line extending within the bottom flap. A first subsection is defined between the second score line and the section score line, and a second subsection is defined between the first score line and the second score line. The at least one web pattern score enables folding such that the first subsection folds towards the second subsection when the box blank is being formed into the box.

The present invention relates to a security system (10) for securing a restricted access area in a converting machine. The security system (10) comprises a detection unit (20) comprising a plurality of sensors (22) arranged side by side an having a vertical sensing direction. Each sensor has an individual control zone (Z). The detection unit is configured to detect control signals (23) indicating an arrival time (t1) and a departure time (t2) of an object (24, 32) transported through each of the control zones. The security system further comprises an evaluation unit (26) configured to receive the control signals (23) from the detection unit and a memory (25) containing a program to cause the evaluation unit to determine an error state indicating the presence of a prohibited access based on the control signals (23).