FIELD: classified information protection device.
SUBSTANCE: invention discloses the method of application of the device for protecting the classified information recorded in the document and the document supplied with abovementioned classified information protecting device; the document contains with window and the structurally weakened areas located close to the window; at that the first element being the information carrier is fixed on the first side of the document on the window level by means of the strong adhesive; the second element is transparent and located on the other side of the document on the window level, at that the second element is fixed to the first element by means of the strong adhesive; the document also includes the changeable element of the information masking which covers the second element to disguise the information put on the first element and fixing the second element by means of the reliable adhesive substance; at that the above changeable masking element has the sizes allowing to close the previously weakened areas which are glued by means of the strong adhesive.
EFFECT: offered document provided with the confidential information protecting device secures the inconvertible, nonrecoverable and nonmaskable destruction of the document upon reading the information whereby excluding its recurring use.
9 cl, 6 dwg
