Wow. Here's an crazy one: Someone was fined 2000 euros for using CC instead of BCC in his little mailing list newsletter of 150 people in Germany. "The fine was impossed against a private person who sent several e-mails between July and September 2018, in which he used personal e-mail addresses visible to all recipients, from which each recipient could read countless other recipients. The man was accused of ten offen…
Without knowing the details, I can't say whether a €2000 fine was disproportionately onerous or a slap on the wrist.
https://www.businessinsider.com/nhs-trust-fined-for-leaking-...