On Fri, Jan 6, 2012 at 4:48 PM, John Wilson <tugwilson at gmail.com> wrote: > Is there a standard "depersonalisation" algorithm? If so anybody know > what it is? No. Indeed, in general, it is not possible to "depersonalise" and retain any usefulness in the data. So step 1 is probably to find out WTF they're actually doing.