The victim discovered a physical letter in his / her mail box. In the letter the perpetrator states that he knows when the victim leaves the house and where his / her friends and family lives. Further, the writer demands a payment of 0.5 BTC to the mentioned BTC-address lest the victim be physically harmed.
Switzerland, 2021-10-05 12:38:42
snail mail abuse from some idiots
Switzerland, 2021-10-05 16:38:20
https://www.20min.ch/story/bande-verschickt-drohungen-per-a-post-und-fordert-bitcoins-940919625535 Number of people in Switzerland received physical letters demanding 0.5 BTC payment to the address or "your life will be ruined". Full description in the link above (in German)
Switzerland, 2021-10-05 20:39:05
Blackmail letters sent to random recievers in Switzerland asking for a payment of 0.5 BTC
Germany, 2021-10-07 07:22:06
Sends paper letters with a massive threat and an obligation to pay 0.5 Bitcoins
Switzerland, 2021-10-07 11:56:11