There are laws against fraud.

" If you know it is a con and still take the risk, it is hard to blame the conartist for doing exactly as expected."

If you know it's a con, then you're not taking a risk. But a mere suspicion does not free a con artist of culpability. All con jobs should be reported to the police.

There is also a law in Finland against spreading information about somebody's private life using the media or other means to be available to numerous people if spreading that information can be expected (or, by implication, does) cause damage or suffering to that person.

https://www.laki24.fi/riri-rikokset-yksityisyyden_rauhan_kunnian_loukkaaminen-yksityiselamaa_loukkaava_tiedon_levittaminen/