<p>A magnetic record medium is provided which is improved in security and characterized in that it has a magnetic printed pattern of a magnetic material which has a particle size smaller than 10 microns and a coercive force less than 30 oersteds. A magnetic record medium is also provided which is improved in security and presents a high S/N ratio upon detection thereof. The magnetic record medium is characterized in that it has a magnetic pattern having a width smaller than 1 mm. Furthe, a magnetic record medium is provided which is improved in security and on which binary information can be recorded. The magnetic record medium is characterized in that it has a first magnetic pattern having a width smaller than 1 mm and a second magnetic pattern having a width equal to or greater than 1 mm.</p>
