I would add that to reduce the risk of misuse of information in the political process, you need to have a series of laws. In Canada and a number of other countries, such as the United States, political parties, at least federally in Canada, are not governed by privacy legislation. That's another gap in the laws of certain countries.
You need a series of measures, including transparency in advertising, data protection laws and other rules, to ensure that the ecosystem of companies and political parties is properly governed.