$1 Million Lost in Binance Hack: User Claims Chrome Plugin Exploit

  • In a surprising turn of events, a Chinese user of the cryptocurrency exchange Binance has reportedly incurred a loss amounting to $1 million in crypto assets.
  • The affected user, Nakamao, alleges that an undercover operative in the cryptocurrency community was responsible for this unauthorized drain.
  • Despite having stringent security measures including two-factor authentication (2FA), the hacker utilized sophisticated techniques to empty the funds.

A Binance user faces a significant financial setback due to an elaborate crypto theft, raising pertinent questions about trading platform security.

Incident Overview: Binance User Loses $1 Million

Nakamao, the Chinese user, claimed that his Binance account was compromised through an act called “counter-trading”. Although the account was secured with 2FA and strong passwords, the hacker managed to gain control without acquiring any login credentials.

The Mechanism of the Hack

According to Nakamao, the hacker manipulated his trading activities by exploiting web cookies that were taken hostage. By conducting large transactions with high-liquidity trading pairs and setting inflated limit sell orders in low-liquidity pairs, the hacker made significant profits without tripping Binance’s security systems. Immediate attempts to contact Binance customer service proved futile as the hacker withdrew the funds before any action could be taken.

Role of a Malicious Chrome Plugin

A deeper investigation revealed that a Chrome plugin named Aggr played a crucial role in the breach. Nakamao had unknowingly installed this plugin upon a recommendation from an overseas influencer. This plugin facilitated cookie theft, allowing the hacker to take control of active sessions, thereby bypassing the need for traditional authentication methods.

Security Lapses and Delayed Response

Further scrutiny showed that Binance was aware of the malicious activities linked to the plugin weeks before Nakamao’s misfortune. However, there was a noticeable delay in alerting users or taking steps to suspend its promotion. Nakamao criticized Binance’s risk control measures and slow response, which allowed the hacker to complete several obvious arbitrage transactions undetected.

The First Instance: Lessons Learned

This incident is among the first involving the theft of funds solely through a Chrome plugin. Earlier this year, on March 1, another user lost funds from their Binance account due to the same plugin. Such incidents highlight the inherent risks associated with browser plugins and underscore the urgency for enhanced cybersecurity measures.

Call for Stronger Security Measures

In light of these events, Nakamao has emphasized the need for elevated security protocols at cryptocurrency exchanges like Binance. The failure to implement timely preventative actions and the absence of effective risk controls have come under sharp scrutiny.


This event serves as a stark reminder of the sophisticated threats plaguing the world of cryptocurrency trading. Users are urged to exercise extreme caution with third-party tools and plugins. It also calls for a concerted effort from trading platforms to heighten their security mechanisms, ensuring a safer trading environment for all users.

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Gideon Wolf
Gideon Wolfhttps://en.coinotag.com/
GideonWolff is a 27-year-old technical analyst and journalist with extensive experience in the cryptocurrency industry. With a focus on technical analysis and news reporting, GideonWolff provides valuable insights on market trends and potential opportunities for both investors and those interested in the world of cryptocurrency.

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