By default, WordPress's database tables is set to "wp_". This makes it easy for hackers to plan a mass attack by targeting the default prefix wp_. Hence, changing the prefix will make it harder for attackers to locate the tables. Guides: https://www.wpbeginner.com/wp-tutorials/how-to-change-the-wordpress-database-prefix-to-improve-security/https://www.getastra.com/blog/911/how-to-secure-wordpress-database/