Act 7 Electronic Signatures Act 2011 (a) which the holder or the holder’s agents have not disclosed to any person in contravention of this act; and (b) which the holder has not obtained through theft, deceit, eavesdropping or other unlawful means; “security procedure” means a procedure for the purpose of— (a) verifying that an electronic record is that of a specific person; or (b) detecting error or alteration in the communication, content or storage of an electronic record since a specific point in time, which may require the use of algorithms or codes, identifying words or numbers, encryption, answer back or acknowledgement procedures or similar security devices; “secure signature creation device” means a signature creation device which meets the requirements laid down in section 4; “signatory” means a person that holds signature creation data and acts either on its own behalf or on behalf of the person it represents “signature creation device” means configured software or hardware, used by the signatory to create an electronic signature; “signature verification data” means unique data such as codes or public cryptographic keys, used for the purpose of verifying an electronic signature; “signature verification device” means configured software or hardware, used for the purpose of verifying an electronic signature; 9