%0 Journal Article %@ 1438-8871 %I Gunther Eysenbach %V 4 %N 2 %P e12 %T Security, privacy, and confidentiality issues on the Internet %A Kelly,Grant %A McKenzie,Bruce %K Access to Information %K Computer Security %K Confidentiality %K Data Collection %K Information Services %K Informed consent %K Internet %K Organizational Policy %K Privacy %D 2002 %7 22.11.2002 %9 Tutorial %J J Med Internet Res %G English %X We introduce the issues around protecting information about patients and related data sent via the Internet. We begin by reviewing three concepts necessary to any discussion about data security in a healthcare environment: privacy, confidentiality, and consent. We are giving some advice on how to protect local data. Authentication and privacy of e-mail via encryption is offered by Pretty Good Privacy (PGP) and Secure Multipurpose Internet Mail Extensions (S/MIME). The de facto Internet standard for encrypting Web-based information interchanges is Secure Sockets Layer (SSL), more recently known as Transport Layer Security or TLS. There is a public key infrastructure process to `sign' a message whereby the private key of an individual can be used to `hash' the message. This can then be verified against the sender's public key. This ensures the data's authenticity and origin without conferring privacy, and is called a `digital signature'. The best protection against viruses is not opening e-mails from unknown sources or those containing unusual message headers. %M 12554559 %R 10.2196/jmir.4.2.e12 %U http://www.jmir.org/2002/2/e12/ %U https://doi.org/10.2196/jmir.4.2.e12 %U http://www.ncbi.nlm.nih.gov/pubmed/12554559