Cezary Cerekwicki

Meet Victor, a vindictive hacker. He can read and even rewrite your browsing history. Which is unfortunate because, even though it may already have sensitive information, he can make it even more so. Browsing history can reveal your income level, romantic preferences, habits, and medical history. The ability to rewrite it could end up with you looking like a criminal in the eyes of the police. Even a small subset of browsing history can uniquely identify a person, which makes it personal data by GDPR's definition. How exactly can this happen, what are the consequences, and how can we defend ourselves?