A vehicle, in particular a motor vehicle, a hybrid vehicle or an electric vehicle, has a first device, which has at least one element, which can have an electric voltage which is hazardous to a human being in the event of such a human being coming into touching contact therewith. The one or more energy generators produce energy focused on the target nerve upon receiving a signal from the logic controller, and the energy is varied by the logic controller according to an input provided by the one or more sensors. The present disclosure can facilitate centralized control of the firewall and the IDS and can increase the speed at which packets are passed between a secured computer network and an external network. In PWM modulation unit 30, pulse signal Sp with pulse width controlled is generated according to control voltage Vc and sent to switching unit 40. Displaying the security information may include presenting a certificate summary that includes the most relevant information about the certificate, such as the name of the owner of the site and the name of the certificating authority of the certificate.