The International Fund for Animal Welfare was fined £18,000 for failing to follow data protection rules.

What they did: 

Between 2011 and 2015, the International Fund for Animal Welfare shared 4,948,633 donor records. This does not necessarily reflect the number of individuals whose records were shared as some may have been shared on more than one occasion.

The International Fund for Animal Welfare did this between 2007 and 2009, and in 2012 and 2013. The total number of people wealth screened  in 2012 and 2013 was 466,206.

The International Fund for Animal Welfare has used this approach since at least 1995. It has matched 220,286 telephone numbers to supporters between 2006 and 2016. It matched 50,282 email addresses to supporters between 2012 and 2013.