There are security plugins such as 'wordfence' that can help you monitor the security of your website, warning you of possible vulnerabilities and reporting possible attacks.
1.You must login to your WordPress administrator to install the plugin.
2.Once in domain admin, you can go to the plugins section and install the Wordfence plugin. Search, install and activate the Wordfence plugin.
3.Once the plugin is activated, you will need to register an email to which your website notifications will be sent.
4.Once the email address is registered, you will be able to use the tools offered by Wordfence to check the statistics and the current and ideal security level.
5.To analyze your current website, you should use the Analyze option among the plugin options. Press the Start a new Scan button to make an analysis of your current website, review the results and correct each of them to increase the security level.
6.You can also keep your WordPress admin login secure with the Login Security option. 
