What is Synthetic Data?

Synthetic data is computer-generated data that looks and feels like real data, but it is not actual data.

Software Blade describes how synthetic data can be used to train machine learning models when real data is not available or is not suitable for training.

How is Synthetic Data Created?

Synthetic data is created using algorithms that generate new data based on existing data.

This can be done by sampling from a real dataset and making slight changes to the sampled data points, or by completely generating new data points from scratch.

TME.net reports how synthetic data “…can be generated using a variety of methods, such as data augmentation, random noise, or generative models.”

Why Use Synthetic Data?

There are several reasons why you might want to use synthetic data instead of real data:

1. You don’t have enough real data: In many cases, you need a large amount of data to train a machine learning model. If you don’t have enough real data, you can generate synthetic data to supplement it.

2. The real data is not suitable for training: The real data may be too noisy or unbalanced to use for training. In these cases, generating synthetic data can help you create a more robust model.

3. You want to protect the privacy of your data: If you are working with sensitive data, you may not want to share it with anyone. In this case, you can generate synthetic data that looks similar to the real data but does not contain any actual sensitive information.

How Do I Use Synthetic Data?

If you decide to use synthetic data, there are a few things you need to keep in mind:

1. Make sure the synthetic data is realistic: The synthetic data should look and feel like real data. If it doesn’t, your machine learning model may not be able to learn from it.

2. Balance the data: If you are using synthetic data to supplement a real dataset, make sure the synthetic data is balanced. This means that the proportion of each class (e.g., positive and negative examples) should be the same in the synthetic data as in the real data.

3. Split the data: When you’re working with both real and synthetic data, it’s important to split them into separate training and testing sets. This will help you avoid overfitting your model to the synthetic data.

Synthetic Data and Cybersecurity

In the field of cybersecurity, synthetic data can be used to train machine learning models to detect malicious activity.

For example, a model trained on synthetic data may be able to identify malware that has not been seen before.

Synthetic data can also be used to create honeypots, which are decoy systems that are designed to lure attackers. By monitoring the activity on a honeypot, security researchers can gain insight into the methods and tactics used by attackers.


Synthetic data is a valuable tool that can be used to supplement or replace real data for training machine learning models.

When used correctly, it can help you create more robust models and protect the privacy of your data.


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