Lisk Mainnet Halts As Bug Triggers Network Protection Mechanism

Updated On Jun 3, 2018 by Cameron Bishop

All transactions and processes on the Lisk (LSK) blockchain network was brought to an abrupt halt yesterday in an automated manner when the security feature in the blockchain was triggered by a malicious code. All the nodes on the blockchain stopped processing new block, leading to a complete halt of the network.

Notably, the 150 odd transactions which were in the pipeline were not included in the blockchain and so no funds were lost. Lisk has mentioned that these transactions will not be re-broadcast to the blockchain as a measure of security. A patch has been released within a few hours by the Lisk team.

Lisk explained that the automatic protection feature was triggered when an individual broadcast a faulty transaction to the Lisk network. In their Reddit post, Lisk team has explained that the incident happened “due to a rare edge-case bug in transaction processing, this transaction was deemed valid and went through the processing steps on each individual node. However, it was an invalid, maliciously customized transaction type that utilized this particular code bug.”

The Lisk team stated that there are enough security arrangements built into the Lisk core to prevent such untoward incidents that may fork the blockchain. All the nodes were temporarily halted in an automated manner to prevent loss of funds.


Max Kordek, CEO of Lisk, stated that similar edge-case incidents had happened twice or thrice in the past. He further said the Lisk blockchain remained secure in such scenarios and the software update carried out to resolve such issues went without any glitch. He guaranteed that Lisk blockchain has been working without any issues.

While affirming the users that all the funds were safe, Kordek announced that a fix for the issue has already been discovered and implemented. Later, Lisk released v.0.9.15 which was meant to resolve the issue and allow the normal running of the Lisk network. Lisk has requested its delegates to rebuild their nodes by upgrading to the latest version. Lisk has stated that it will continue to update its community regarding the progress in resolving the issue.


The manner in which Lisk responded quickly to release a patch is commendable. That may be one of the reasons for the value of the Lisk token to remain unaffected even after the network was halted. At the time of writing this article Lisk was trading at $9.24, up 7.8% from the previous day’s close.

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Cameron works tirelessly behind the scenes ensuring his many US news stories are factual, informative and brought to you in a timely fashion before most other media outlets have them. He is an investigative journalist at heart who also has a fond interest in the money and business markets too.

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