Abstract: In a method for increasing internet security, the data to be transmitted are prepared in such a way that the useful information bits having an odd bit index are gathered in a packet and the useful information bits having an even bit index are gathered in another packet. The two types of packets are transmitted over two different networks and, after their transmission, are recombined by the receiver according to the original information. The transmission of the prepared data over two different networks makes unauthorised access to the original information difficult during their transfer.