This book constitutes the thoroughly refereed post-conference proceedings of the 7th IFIP WG 9.2, 9.6/11.7, 11.4, 11.6 International Summer School, held in Trento, Italy, in September 2011. The 20 revised papers were carefully selected from numerous submissions during two rounds of reviewing. The book also contains two invited talks. The papers are organized in topical sections on privacy metrics and comparison, policies, privacy transparency in the age of cloud computing, privacy for mobile applications, consumer privacy, privacy for online communities, privacy for eHealth and eID applications, privacy attacks and problems, and ethics.