See More

New DeFi Trend: Sentiment Hacker Returns 90% of Stolen Funds After Exploit

2 mins
Updated by Kyle Baird
Join our Trading Community on Telegram

In Brief

  • The Sentiment hacker returned 90% of the stolen funds, the team announced.
  • This is the third time in recent weeks that an attacker has returned funds, as the same happened with Euler and Allbridge.
  • This may be the start of a new trend where hackers return funds if they receive a bounty.
  • promo

The hacker who exploited the Sentiment DeFi platform has returned nearly all of the funds, according to the team. This is yet another occasion when the exploiter has returned funds.

The hacker behind the Sentiment attack has returned 90% of all funds, the team announced on April 6. The Sentiment hacker had conducted the exploit on April 4, stealing an estimated amount of nearly $1 million.

The hacker used a reentrancy attack to siphon the funds. The team quickly responded, plugging a fix thanks to a third-party security auditor. The specific method was described as “used view re-entrance Balancer bug to execute malicious code before pool balances were updated and steal money using overpriced collateral.”

Sentiment Hacker Returns Stolen Funds similar to other DeFi attacks like Euler and Allbridge: PeckShield
Sentiment Hacker Returns Stolen Funds: PeckShield

There are not many more details on the return of the funds yet. The Sentiment team has confirmed that it will publish a full statement in a few hours, which should give the crypto community more information on what transpired. As it stands, the team’s successful negotiation with the hacker has resulted in offering 10% as a bounty.

This hasn’t been confirmed, but it appears that way, given recent trends concerning security incidents. PeckShield reported that a two or three multi-sig wallet manages the returned funds. More interestingly, it appears that the bounty value is about $98,000 to Tornado Cash.

Sentiment Hacker Was Quickly Contacted

The Sentiment team quickly attempted to reach out to the hacker to negotiate a return of the funds. Reports emerged that the team was willing to offer a bounty close to $100,000, and it seems to be that way. The team had also published a bounty on ImmuneFi.

The team was firm in its position, telling the hacker the following,

“To the hacker: We will offer you $95k and will not pursue this, if you return the money by 8 am UTC 6 April. To everyone else: if the hacker has not returned the funds by the above time, we will give any person that same $95k if you help us find and prosecute the person responsible for this theft.”

Returning Stolen Funds for Bounty a New Trend?

Hacks are all too common in the DeFi space, with the Sentiment hacker only adding to what is already a long list. However, what has been particularly interesting is that many hackers have been returning funds for bounties in recent weeks. Three of four recent hacks have seen funds returned for bounties.

Euler Finance, a $197 million hack, was one of them. The team successfully negotiated the return of the funds, which led to the EUL token price recovering.

The other incident was the Allbridge hack, with the team stating that it had recovered 1,500 BNB from the attacker. Allbridge identified the hacker in a day.

Top crypto projects in the US | April 2024

Trusted

Disclaimer

In adherence to the Trust Project guidelines, BeInCrypto is committed to unbiased, transparent reporting. This news article aims to provide accurate, timely information. However, readers are advised to verify facts independently and consult with a professional before making any decisions based on this content. Please note that our Terms and ConditionsPrivacy Policy, and Disclaimers have been updated.

Rahul-Nambiampurath.jpg
Rahul Nambiampurath
Rahul Nambiampurath's cryptocurrency journey first began in 2014 when he stumbled upon Satoshi's Bitcoin whitepaper. With a bachelor's degree in Commerce and an MBA in Finance from Sikkim Manipal University, he was among the few that first recognized the sheer untapped potential of decentralized technologies. Since then, he has helped DeFi platforms like Balancer and Sidus Heroes — a web3 metaverse — as well as CEXs like Bitso (Mexico's biggest) and Overbit to reach new heights with his...
READ FULL BIO
Sponsored
Sponsored