FIELD: physics, computer engineering.
SUBSTANCE: invention relates to computer engineering and is intended to protect from software piracy. Software includes a broadcast protocol for searching for launched software copies through which the identity of activation codes on multiple software copies is checked and it is determined whether a user carried out unauthorised activation or copying of an already activated software copy.
EFFECT: high efficiency of detecting unauthorised activation of software copies using the same activation code or copying an already activated software copy, in order to block all software copies with the same activation code.
1 dwg
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