The Biggest Bitcoin Theft of 2025: Victim Loses 738 BTC
Date: 2025-08-25 Author: Henry Casey Categories: CRYPTO PAYMENTS
A large-scale theft of bitcoins was reported on August 19, 2025: the victim of the attack lost 738 BTC. According to blockchain analyst ZachXBT, the attackers acted in the first half of the day, and a day later began laundering the stolen assets through the Wasabi Wallet service, which allows you to hide the history of transactions due to the privacy function.
The main tool of the attack was social engineering. The fraudsters introduced themselves as technical support employees of a large exchange and a hardware wallet manufacturer. Using the legend of the "urgent need to protect funds", they convinced the owner to transfer the cryptocurrency to a new address. The victim believed the plausible story and lost his assets.
ZachXBT emphasized that in such situations, any incoming calls, emails, or messages allegedly from exchanges should be perceived as potential fraud. He noted that the identity of the attackers has not yet been established. At the same time, the expert ruled out the involvement of well-known cybercriminals from the Lazarus Group, which often appears in the news about cryptocurrency thefts, in the attack.
This incident was the largest theft of bitcoins since the beginning of 2025 and once again demonstrated the vulnerability of even experienced investors to social engineering methods. Despite the use of complex technical tools to hide transactions, the main reason for the incident is the victim's trust in the attackers, who introduced themselves as official employees.
ZachXBT is known for his investigations in the crypto community. Previously, he criticized the BlockDAG project, which planned to combine blockchain with DAG technology, for the protracted pre-sale of BDAG tokens. The expert noted that excessive delays in the project launch stages cause mistrust among potential investors.
The theft of 738 BTC has once again brought up the discussion about security in the cryptocurrency industry. Despite the development of hardware solutions and anonymization services, the main vulnerable link remains a person. Experts remind: you should never transfer funds on the instructions of third parties, even if they claim to represent official companies.
Thus, the incident has become an important reminder for all digital asset holders about the need for increased attention and skepticism in any contacts with "support services". In conditions when the cost of one bitcoin remains high, every mistake can cost an investor millions of dollars.
