Career
She was rapporteur for the Safer Internet Plus Programme at the start of her term in the European Parliament. She was active on anti-terrorism, information security, data protection and privacy, and on seeking alternatives to Strasbourg as a meeting place for the European Parliament once a month. She was also an observer on the European Security Research Advisory Board.
She was President and Chairwoman of the European chapter of the Global Organisation of Parliamentarians Against Corruption (The Global Organization of Parliamentarians Against Corruption ).
On 23 August 2012 Mastenbroek died due to cardiac arrest at the age of 37. Higher degree in political science (specialising in international relations) (2000)
Trainee with the Democratic Leadership Council, Washington, District of Columbia (2000)
Senior researcher with Infodrome - a think tank for the information society (2001–2002)
Public affairs official/spokesperson for the Internet service provider xs4all (2002–2004)
Coordinator of the "Niet Nix" innovation movement (1999)
Assisted the Labour Party election programme committee (2001).