Attaching accessories to a helmet can yield the helmet unsafe to wear. For example, a camera attached to a helmet may penetrate through the helmet and cause significant damage to the user. The helmet can become also dangerous if the accessory is mounted rigidly so that in an event of an impact to the accessory, the impact will cause tangential force or torque to user's head and can thus cause severe damages.
Some attempted solutions exist which utilize mounting platforms, base or rails attached to the surface of the helmet on which the accessory such as camera has been attached. These solutions can make the use of camera more comfortable but doesn't prevent the accessory to cause danger.
Some attempts utilize magnets for attaching the accessories to the helmet. While the accessory can detach from the magnet quite easily in case of an impact, the magnet itself is still rigidly attached to the helmet and can become dangerous.
There is still need for a helmet to which accessories can be attached without jeopardizing the safety of the helmet.