5 Tips for Protecting Your MySQL Data Warehouse

Aggregating data from various sources allows the creation of a central warehouse. By analyzing and aggregating business data reports, data warehouses can help companies make informed, strategic decision analysis. Although data warehouses provide many conveniences, collecting these sensitive data into a separate system will bring security issues to the data warehouse.

If you choose to use a data warehouse, companies need to consider how to better protect internal information systems. Any compromise in data warehouse security will provide intruders or cyber criminals with an opportunity to damage and leak business data such as sales, marketing, and customer information. The WannaCry ransomware incident that broke out this year also demonstrated this point. Modern enterprises need to strictly avoid data crimes.

In data warehouses, the most common database management system should be the open source MySQL database. This article lists 5 tips to help users better protect MySQL data warehouse.

1. Access restrictions

One way to effectively protect your MySQL data warehouse is to grant access rights only to users who absolutely need them. By implementing role-based control, you can restrict access to data warehouse information to certain users, such as viewing or operating database objects, as well as some tables and schemas that are only accessible to roles specifically defined in the warehouse database.

MySQL database administrators need to strengthen security measures to limit individual users' operations on the data warehouse, including:

The number of queries allowed per hour for a single account;
The number of updates allowed per hour for a single account;
The number of server connections a single account is allowed to make per hour;
The number of concurrent connections to the server for a single account.

If you want to use the information in the data warehouse to make important decisions, access to views or change permissions for MySQL warehouse data should be given only to key business personnel.

2. Create a password expiration policy

Password cracking tools are one of the main ways for intruders to gain access to database systems. MySQL provides users with an option to create their own password expiration policy by setting the number of days to expire using the default_password_lifetime variable.

When it comes to password expiration, users need to find the right balance. Evidence suggests that requiring users to change their passwords frequently can frustrate them, leading them to create simple passwords that are easily hacked. So you can choose a reasonable expiration time, such as six months before requiring users to create a new password to access the data warehouse.

It is also recommended that users use a password generator to access the data warehouse to create a strong password every time.

3. File backup

For any database system, backup of MySQL data warehouse is of utmost importance. Natural disasters such as floods and fires, system crashes, hardware failures, and human errors can all pose threats to business data.

MySQL has extensive backup capabilities to help users quickly restore databases after security incidents. The most important thing is to create a physical backup of the data warehouse to ensure that the original copy directories and files of the database information are safe. When needed, backup information can be easily and quickly restored using special MySQL functions.

For remote backup, you need to choose a secure remote server to store the backup data, which helps avoid problems caused by fire, floods, and hardware failures.

4. Update and install critical patches

Oracle, the developer of the MySQL system, regularly releases critical patches to address security issues and help users update their MySQL data warehouses. It is important that organizations stay up to date and install critical patches as soon as possible after they are released.

Sometimes, developers discover flaws in existing software, and patches exist to fix these bugs. You can review all planned and past critical patch updates for MySQL here.

5. Use a reliable data integration solution

Since MySQL data warehouse integrates information from multiple data sources in an enterprise, using a reliable solution can be of great help. A good data integration platform can efficiently and securely send data from data sources to the MySQL data warehouse.

In addition, if you want to copy data from MySQL to data warehouses on cloud platforms such as Redshift and BigQuery, the security of the data integration platform is also crucial. A reliable platform can securely send important data from MySQL to the cloud to help conduct large-scale data analysis.

By incorporating these five tips into your MySQL data warehouse management, your important business data can be fully protected.

Original article: 5 Tips for Securing Your MySQL Data Warehouse
By Mary Gevorgyan
Translation: Guo Rui

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