The attack on Twitter last week continues to be discussed. Briefly remember what happened:
last Wednesday (one or more) combined hackers took control of accounts of public figures and published tweets asking for the sending of bitcoins with the promise that the amount would be returned doubled. An estimated $ 110,000-120,000 has been sent in a few hours
The fact highlighted on the one hand the serious security flaw – according to the results of the investigations, the hackers managed to take control of systems and tools reserved for Twitter staff – on the other it highlighted the effectiveness of the techniques of social engineering, thanks to which the scammers manage to spontaneously surrender sensitive data or, as in this case, substantial '' donations '' in Bitcoin.
And then there is, as a corollary, the finding of how many users, despite the (false) messages that promised too generous returns, have taken the bait. The 110,000-120,000 dollars sent in a few hours could have been many more if it were not for the intervention of the same cryptocurrency exchange platforms that blocked bitcoin transfers upstream. Among the most active in this sense was Coinbase which prevented over 1,000 customers from sending transfers for a total of 280,000 dollars.
Coinbase's action was timely: only 14 users managed to send bitcoins for a total of $ 3,000 before the platform managers blacklisted the address indicated in the fraudulent messages.
A Coinbase spokesman told colleagues from The Verge: we realized that it was a scam and we started blocking transactions after a couple of minutes from the first wave of posts. Minutes that were enough for hackers to deceive the victims, but at least the damage was limited.
Other platforms for the exchange of bitcoins have adopted similar measures to respond to the coordinated attack: among the various are mentioned Gemini, Kraken and Binance – more precise details are missing on the amount and number of transfers made. The Twitter accounts of Gemini and Binance were also targeted by hackers and, noticing these suspicious messages, Coinbase's colleagues noticed the scam.
It is worth mentioning that these security mechanisms of the platforms for the exchange of bitcoins always operate: today they pass to the headlines considering the serious attempt of computer scam made a few days ago. The official balance sheet refers to 130 violated accounts and the FBI continues to investigate the case.