While the past week has been stressful for the entire VeChain team, it’s also one of the most rewarding experiences for the team. Through dealing with the incident, our team and community became stronger.

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Security is always one of VeChain’s top priorities. We would like to re-emphasize that the security of the VeChainThor blockchain and wallet applications are intact and unaffected. We have worked hard in recent years to assure infrastructural security, and from the incident, we just learned fair importance should be attached to other elements such as process compliance.

Moving forward, we are still committed to providing secured blockchain services to all our stakeholders, including community members, token holders, enterprise partners, and application owners.


Since the incident happened, together with the community, developers and our partners, we have taken the necessary and immediate actions to control the situation and reduce the impact on the community. The good news is that we believe the damage has been successfully contained as of now.

How did we respond to the incident?

On December 13, as soon as we noticed the abnormal transaction of the Foundation buyback wallet, we informed the Steering Committee to launch the incident response protocol and called an urgent meeting with leaders in various functions. We checked immediately the security of the rest of the Foundation wallets, notified major exchanges and take all needed actions to reduce the possible impacts on the market to protect all stakeholders.


Shortly after the incident, VeChainStats which is well known across the VeChain Community as a dedicated developer of data analysis tools for the ecosystem offered to create a blacklist to track down the stolen funds.

It allowed exchanges to take preemptive actions and prevent the deposits from the blacklisted addresses from directly hitting the market. In addition, the Hacken team who is working with over 2,000 whitehat hackers was helping to trace the funds and notified exchanges in the Crypto Defenders Alliance.

Thanks to the quick responses from OceanEx, Binance, Huobi, Kucoin, Bitrue, Bitfinex, Bittrex, and other exchanges, we were able to prevent the thief from creating an even bigger sudden deliberate negative impact on the market.

Nevertheless, the thief escalated the action in the next few days, such as creating thousands of new wallets with small amount of tokens to wash the stolen funds and launching DDoS attacks to VeChainStats’ blacklist and etc., which made us think we need to take more decisive measures to contain the damage and more importantly to win more time for investigation and collecting community feedback.


Therefore, an urgent internal Steering Committee meeting was called by Steering Committee General Secretary Sunny Lu to discuss the possibilities of preventative actions. After careful consideration, the Steering Committee voted and passed a motion to contact all the Authority Masternodes and release an emergency patch i.e. VeChainThor v1.1.5 on December 18th, so that the Authority Masternode can vote on whether or not they agree to implement a temporary block on the addresses controlled by the thief.

This was well-received by all of the Authority Masternodes holders, and thanks to their quick response, within 72 hours after the patch was released, the situation was quickly under control as we see more and more the Authority Masternodes opted to implement the new updates. All Authority Masternodes have confirmed that the block list has been implemented, therefore it is almost impossible for the thief to move the stolen funds for now.

Currently, 469 addresses owned by the thief have been blocked by the Authority Masternodes, which froze about 727 million VETs. For the funds that have already been moved to exchanges, we will continue working with exchanges to retrieve the stolen funds.

What is going to happen next?

VeChain always aims for iterating and profound balance of decentralization for transparency and trust, and execution efficiency.


It’s imperative that the community gets to make the final decision on the destiny of the blocked address and the stolen funds within them. In accordance with the recently approved VeChain Governance Charter, the Steering Committee is convinced that an All-stakeholders Voting is needed in this kind of extreme case. Therefore we are going to announce an All-stakeholders voting very soon on whether or not to implement the blocklist introduced in VeChainThor v1.1.5 permanently, to make these 469 tainted addresses into burn-addresses, and de facto making the 727 million VET tokens burnt tokens, forever subtracted from the total and circulating supply. Details will be announced soon.

On the investigation side, we are working with professional cybersecurity firms to conduct cyber-forensic checks on the devices that were potentially compromised to cause this theft. We are expecting to discover evidence and trails that may have been left by the thief to confirm the exact cause of the incident. We are also collaborating with exchanges to cross-examine evidence, action will be taken by law enforcement if solid evidence surfaces.