A crypto trader from the Netherlands had been brutally tortured in front of his 4-year-old daughter, by 3 suspects disguised as police. The investigator suspected that the criminals stole some private keys, passwords that transferred the victim's fund to the suspect's wallet. How could the criminal know his a trader and identity, location? Could this be an inside job?
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This is exactly why like the rest of your assets: bank statements, land titles, or etc, you should never advertise your crypto holdings. Pseudo-anonymity is weak. Now for those crypto multimillionaires, they should get personal security as if they are CEOs of multinational corporations.