I have been around WordPress from last 5 years and what I observed as developer that there are minor mistakes which cost website owner to face crucial issues like hacking attack, ranking drops, poor conversion rate and penalties. As been victim of all those thing what I learn is that you need to select proper resources for your website like: Hosting, Theme, Plugins and security measure which help you to build a solid basis on which you rely and invest all your marketing effort. Hosting WordPress website with unreliable resources like using null themes and plugins can be one of the biggest reason why WordPress is been under massive attacks from hackers. Here are some of the most reliable and common use WordPress plugins:
- WordPress SEO by Yoast
- Login Lockdown
- BackupBuddy
- Breeze
- WPForms
- OptinMonster
- Sucuri
- WordFence
- Google Analytics
- Audit Log
- Two Factor Authentication