The invention relates to a method and apparatus for anti-theft identification of office equipment, preferably computers, by applying at least one identification marking to the computer in question, so that if the article is stolen the original owner can be traced. To this end the computer is given visible anti-theft protection with the aid of a text carrier (1), stating that the product has such identification and including a fastening portion (3), which can be fixed in the computer outer casing (2). Before fitting the text carrier to the outer casing, the fastening portion has encapsulated in it a crystal (4) which has been programmed with ownership information, e.g. in the form of alphanumerical text. The apparatus in accordance with the invention comprises a text carrier in the form of a medallion (1), with a front side (5) clearly indicating that the computer has been given anti-theft identification, and a rear side (6) having a projecting fastening portion (3) for positionally fixing the medallion in the computer outer casing. The portion (3) has moulded into it at least one crystal (4), which either by itself or in combination with one or more similar crystals (4) in the computer, encapsulated in dummy electronic components for example, has been programmed with necessary information on ownership.
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