As incidents of malicious ransomware attacks involving cryptocurrencies continue to surge, experts are advising traders on personal security measures to mitigate the risk of physical harm.
Why are criminals increasingly opting for physical violence over purely cyber intrusions?

Several recent cases highlight a disturbing trend where criminals are targeting cryptocurrency holders and resorting to extreme measures for extortion. For instance, a 33-year-old Canadian crypto entrepreneur was attacked in Spain. While traveling from Barcelona to Madrid for a financial transaction, he was ambushed by several men on the evening of March 16th as he left a restaurant on Claudio Coello street. The assailants allegedly used pepper spray and forced the victim into a Ford Transit van with fake license plates.
Similar incidents have occurred in France. On New Year's Eve 2024, an armed robbery took place in Saint-Genis-Pouilly, France, where intruders broke into a residence searching for the younger son's digital assets. After failing to find them, they doused the 56-year-old father with gasoline, stuffed him into a car trunk, and drove him 700 kilometers to Le Mans. The victim's partner was tied up at the scene.

In Vienna, Austria, the son of a deputy mayor from Kharkiv, Ukraine, was found dead inside a torched Mercedes-Benz, his digital wallet emptied. Austrian police reported that the victim suffered severe physical abuse before the vehicle was set on fire with gasoline.
Despite the arrest of ten suspects in China via Interpol, recovering stolen funds remains extremely difficult due to the irreversible nature of blockchain transactions.
To counter these risks of physical extortion, some security experts propose a "multi-signature" (multi-sig) solution. This system requires multiple participants in different geographical locations to simultaneously approve a transaction, effectively preventing a single individual or group from easily pilfering assets from a wallet.

