# Slashing

## **What is slashing?** <a href="#what-is-slashing" id="what-is-slashing"></a>

Slashing is a penalty system. If a validator misses their duties, such as not validating a block in time, they can lose a portion of their staked KUB. The deducted amount then gets awarded to the official pool as a reward. Slashing in the KUB network ensures that validators meant to secure the network act in the best interests of all users. If a validator doesn’t perform its duties, slashing comes into play.

### **Tracking** <a href="#how-does-it-work" id="how-does-it-work"></a>

After the first warning, the system starts tracking the validator's performance for roughly 24 hours. This tracking period is called the **Slashing Epoch**, which lasts 345 spans.

### **Slashing Threshold**

Suppose a validator misses block validations repeatedly and reaches a threshold of 50 spans (approximately 3 hours and 20 minutes) within 345 spans (approximately 24 hours) for the slash epoch in a network of KUB, the validator will be slashed. However, the counter resets if they don’t reach this threshold or if it reaches 345 spans.

### **Penalty Amount**

The amount of the penalty depends on the type of node:

* Pool Node: 100 KUB penalty

{% hint style="warning" %}
Before penalizing validators, there will be issued warnings as an initial measure against missed duties.
{% endhint %}

Once a validator doesn't propagate its block in time, the official node steps in. The official node creates a block, adds a slashing transaction, and signs it. This transaction triggers the [SlashManager](https://www.kubscan.com/address/0xEF6F6c6fdaEAc0326FFE1413D7d7CCAA7B56b753) smart contract, which takes care of the slashing procedure based on the abovementioned rules.


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