Bitcoin (BTC) self custody supplier Casa warns about bodily assaults towards Bitcoin holders, as they publish a weblog submit describing details of a current incident.
Their shopper’s dangerous Tinder expertise combines components of social engineering, sim swapping, and a extra old-school drugging and robbing assault.
Considered one of our purchasers was focused on a relationship app and ended up being drugged with the aim of draining his crypto accounts. That is the story of the assault and our postmortem evaluation of what went unsuitable and what went proper. https://t.co/co3XacQGQp
— Jameson Lopp (@lopp) July 8, 2021
Based on the story, an alleged Bitcoin holder and dealer discovered his date through the cellular app Tinder, the place he contacted a girl who claimed to be a “cryptocurrency dealer.”
As the 2 met up in individual, he seen that her photos have been barely totally different from her in-person look, however he didn’t assume a lot about it.
The sufferer remembers that “she stated her dad and mom purchased her 1 bitcoin for $30,000, however in any other case she didn’t speak about crypto for the remainder of their time collectively.”
In the middle of their date, two determined to return to the person’s residence, and someplace within the interim, the lady laced his drink with scopolamine, additionally referred to as ‘Satan’s Breath,’ or a benzodiazepine, medication famend to trigger reminiscence loss in addition to inhibition impairment.
Based on the submit, “he believes the lady picked up his cellphone and requested him to point out her easy methods to unlock it and discover his passwords.”
The person wakened the subsequent day and his cellphone was lacking, regardless that all of his different belongings, together with a pockets with money, debit playing cards, and ID have been nonetheless there.
Saved by the multisig
The sufferer instantly checked “varied accounts from his laptop computer and noticed that purchases from his checking account had been tried at a number of exchanges and Bitcoin withdrawals had been tried from different custodial providers,” because the attacker tried to strip him bare, figuratively.
“Lots of our purchasers may even have password managers and 2FA on their cellphone. Within the case of this shopper, although he was not utilizing SMS 2FA, he was utilizing TOTP 2FA through a google authenticator app on the cellphone. Because the attacker had coerced his cellphone unlock pin from him, that they had entry to 2FA for all of his accounts,” talked about the submit because the writer drew a parallel to so-called sim swap assaults.
He finally misplaced solely a small quantity of Bitcoin as certainly one of his change accounts was compromised, whereas the largest proportion of his whole holdings have been saved due to the multisig setup he had.
The attacker solely had one of many sufferer’s 5 keys, which enabled him to dam different requested purchases and withdrawals by contacting custodians and submitting a compromise.
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