Her dissertation, Combining Cryptography and Game Theory in Distributed Algorithms, was supervised by John C.
[2][7] Her time as a graduate student in the US overlapped with the 2000 United States presidential election between George W. Bush and Al Gore, and the controversy over the vote recount sparked her interest in the integrity of elections.
[6] In 2017, Teague showed that historical data from the Australian Medicare Benefits Scheme that had supposedly been stripped of identifying details could be re-associated with the names of individual patients.
[11] The same flaw was later discovered to be present in voting systems in New South Wales, whose electoral commission nevertheless declared them to be safe to use.
[12] Teague also became an outspoken critic of Australia's 2019 anti-encryption laws,[13] at the same time that a change in Australian defence policy severely limited her ability to discuss matters related to cryptography with researchers in other countries.