The Casascius bar worth 100 BTC is one of the most unique physical artifacts of BTC.
It was purchased for just $500 in 2012. Now its value exceeds $10 million.
After 13 years, the bar was opened by its owner, who transferred his BTC to new addresses.
After a successful transfer, the owner shared his success on the Bitcointalk forum.
When posting his story, the owner made a mistake; he did not notice that one of the posted photos contained the seed phrase, which was exploited by scammers who withdrew all the coins from the old wallet.
The losses amounted to about $50,000.
It is comforting that the main large sum was successfully transferred to the new wallet in advance.
As of today, there are still about 35 unopened Casascius bars in the world.