[2][needs update] He became a member of the National Assembly (MP) in the 1998 parliamentary election.

[3] The press release of the United States Department of the Treasury claims Rogán has built a network of corruption in Hungary aimed at controlling strategic sectors and channeling their revenues to himself and his political allies.

As of 2024, his most successful intellectual property has generated a cumulative gross income of over 1,300,000,000 HUF (approximately 3,660,000 USD) for him.

[13] The invention concerns electronic signatures, and it is used by several large private companies, who are important partners of the state.

[14] It is notable that the first version of the technology covered by Rogán's invention received HUF 8 million (USD 29,000) of EU funds via the Hungarian state-administered Széchenyi Program.