Jan 6, 2022

BEOSIN’s Review — Losses From Crypto Attacks Reach $15.3 Billion in 2021

The past year 2021 has seen a great number of shocking crypto attacks related to blockchain ecology. Today let’s do a recap on what happened in the blockchain security ecology in 2021. 1. Overview of the Blockchain Security Ecology in 2021 According to the incomplete statistics from the data monitored…

5 min read

BEOSIN’s Review — Losses From Crypto Attacks Reach $15.3 Billion in 2021

5 min read

Dec 30, 2021

Vulnerability Analysis of Polygon’s MRC20 Contract

On December 3 and 4, two critical vulnerability reports were submitted to Polygon by two white hat hackers. Analysis by BEOSIN’s security team has shown that the vulnerability is located in the Genesis MRC20 contract on Polygon. The vulnerability is due to an unchecked caller balance in the transferWithSig function…

2 min read

Vulnerability Analysis of Polygon’s MRC20 Contract

2 min read

Dec 29, 2021

BEOSIN: Summary of Token-level Security Issues

BEOSIN: Summary of Token-level Security Issues Token-level security issues cannot be ignored in blockchain security. …

11 min read

Dec 22, 2021

Two vulnerabilities in one function — the analysis of Visor Finance exploit

The attackers exploited the vulnerabilities in Visor Finance via a malicious contract, and forged a transaction to deposit 200 million tokens into Visor Finance’s stake mining contract (0xc9f27a50f82571c1c8423a42970613b8dbda14ef), thereby acquiring 195,249,950 vVISR stake certificates. The 8,812,958 VISR were then withdrawn from the stake mining contract using the stake certificates. The…

3 min read

Two vulnerabilities in one function — the analysis of Visor Finance exploit

3 min read

Dec 14, 2021

Brinc Finance was attacked due to suspected private key compromise, resulting in the loss of 290 ETH (~ $1.1 million)

BEOSIN Eagle-Eye detected that Brinc Finance was attacked due to private key compromise, resulting in the loss of 290 ETH (~ $1.1 million). Brinc Finance confirmed on its official Twitter that it was attacked. Attacker: 0x6B0b61323F6d77ef8A1a35D11FA877631d8f67Bb Attacked Contracts: 0x1eC83036A1dbbd6e001bb216e31b8A259ebd8f3D Transaction Hash: 0x09ae252d00122864070461e78810a3b91c4fb64076f72eb6dba775a80ca00df4

2 min read

Brinc Finance was attacked due to suspected private key compromise, resulting in the loss of 290…

2 min read

Brinc Finance was attacked due to suspected private key compromise, resulting in the loss of 290 ETH (~ $1.1 million)

BEOSIN Eagle-Eye detected that Brinc Finance was attacked due to private key compromise, resulting in the loss of 290 ETH (~ $1.1 million).

Brinc Finance confirmed on its official Twitter that it was attacked.

Attacker: 0x6B0b61323F6d77ef8A1a35D11FA877631d8f67Bb

Attacked Contracts: 0x1eC83036A1dbbd6e001bb216e31b8A259ebd8f3D

Transaction Hash:

0x09ae252d00122864070461e78810a3b91c4fb64076f72eb6dba775a80ca00df4

Dec 1, 2021

A Full Analysis of the MonoX Attack

On November 30, BEOSIN Eagle-Eye detected that MonoX, an automatic market maker protocol, suffered a flash loan attack with a loss about USD 31 million. Regarding this attack, the BEOSIN technical team immediately conducted an incident analysis. After the attack, MonoX confirmed on its official Twitter that its contract was…

6 min read

6 min read

Dec 1, 2021

Inventory | More than 22 typical security incidents occurred in November

It’s time for another monthly security inventory! Beosin Eagle-Eye shows that in December 2021, various security incidents still occur from time to time. According to BEOSIN’s statistics, more than ‘22’ typical security incidents in occurred November. On the whole, the number of blockchain security incidents in November is not much…

4 min read

Inventory | More than 22 typical security incidents occurred in November

4 min read

Nov 4, 2021

What are the security issues that cannot be ignored in the “metaverse”?

What are the security issues that cannot be ignored in the “metaverse”? (1) Cyber-attack Cyber attacks are a major threat to the digital ecology, and the metaverse is not immune to this hazard. …

2 min read

Oct 31, 2021

Inventory | More than 22 typical security incidents occurred in October, mainly in areas of DeFi and encryption scams

It’s time for another monthly security inventory! Beosin Eagle-Eye shows that in October 2021, various security incidents still occur from time to time. According to BEOSIN’s statistics, more than ‘20’ typical security incidents in occurred October. From a general point of view, the blockchain security incidents in October decreased slightly…

3 min read

Inventory | More than 22 typical security incidents occurred in October, mainly in areas of DeFi…

3 min read

Oct 28, 2021

Theft of $130 million! A Full Analysis of Cream Finance’s Fifth Hack This Year

On October 27, BEOSIN’s Security Situational Awareness Platform revealed that the DeFi lending protocol Cream Finance was attacked again with a loss of $130 million. The stolen funds were mainly CreamLP tokens and other ERC-20 tokens. Regarding this attack, BEOSIN’s security technical team conducted incident analysis immediately. #1 Event overview …

5 min read

Theft of $130 million! A Full Analysis of Cream Finance’s Fifth Hack This Year

5 min read