The principle of free suffrage is grounded on the freedom of voters to form an opinion. This freedom, which partly overlaps with equality of electoral opportunity, requires the state, and public authorities generally, to honour their duty of even-handedness, particularly where the use of the mass media, billposting, the right to demonstrate on public thoroughfares and the funding of parties and candidates are concerned. The freedom to form an opinion includes the right to be correctly informed before making a decision, the right to private online browsing and the right to make confidential communications on the internet. The monitoring of people's online activity without their consent and for the purpose of understanding and exploiting their behavioral paths undermines these rights.