This could be the biggest physical attacks on a crypto personalities as it was reported that David Belland, co-founder of Ledger wallet was kidnapped in France, but he was released. Reports are still sketchy by this time, not sure if they paid ransom or what.
According to reports he was kidnapped on the 21st of January and the kidnappers demanded ramson on cryptocurrencies. He was released the next day through police intervention and according to the article no ransom was paid. Police usually report that ransom was not paid to discourage the kidnapping. In my area even when money is paid to the kidnappers the police will tell the public that it was an unconditional release through their efforts. Hope they didn't have access to some important Ledger data from David Belland.
https://cointelegraph.com/news/ledger-co-founder-david-balland-freed-after-kidnapping-in-france