Does moving wp-content, plugins and uploads directories improve security?

I’m looking into best practices for securing a wordpress installation.

This topic is discussed widely and there are a number of aspects to making an installation (more) secure. One apsect I’ve seen is moving and renaming the standard installation file structure. For example I can easily transform

site-root
–>wordpress
—->wp-admin
—->wp-content
——>plugins
——>themes
——>uploads
—->wp-includes

to ….

site-root
–>my_core
—->wp-admin
—->wp-includes
–>my_content
—->themes
–>my_plugins
–>my_uploads

by configring the wp-config.php file and through admin.

I could even replace the ‘my_’ directory names above with completely random strings so they couldn’t be guessed.

My point is that does this actually make the wordpress installation more secure against attack?

I can’t answer this question myself as I don’t fully understand the various ways wordpress sites are attacked by hackers. I’m not saying would this prevent all types of attack, just can it prevent a certain type of attack or help slow down a hacker to the extent they would give up.

Any comments welcome! Thanks