[3] Dee has organised many events for women in computing and for broader groups with a women-friendly stance, including an android programming family fun day (materials available in Welsh and in English).

[4] Dee received a BSc in Cognitive Science (1996), an MA in Philosophy (1998), and a PhD in Computing (2005), all from the University of Leeds.

Dee's publications[1] include: In 2014 Dee was featured in the e-book of these 30 women in IT, Women in IT: Inspiring the next generation, produced by the BCS, The Chartered Institute for IT, as a free download e-book, from various sources.

In 2018, Dee was added to the Computer Weekly 'Most Influential Women in UK IT' Hall of Fame alongside Chi Onwurah, Sarah Wood and Sherry Coutu.

[20] Hannah Dee started in 2008, the BCSWomen Lovelace Colloquium which is the UK's main conference for female undergraduates, and was the Chair 10 years, then having the role of Deputy Chair[21] of the Colloquium [22] In June 2024, Dee was awarded Member of the Order of the British Empire (MBE) in King Charles' Birthday Honours List[23] in recognition of her services to 'Technology and to Women in the Information Technology Sector'.