How to Secure a website ?

Utilize Secure Passwords

Be Careful When Opening Emails

Introduce Software Updates

Utilize a Secure Website Hosting Service

A SSL Certificate Keeps Information Protected

Secure Folder Permissions

Run Regular Website Security Checks

Securing Your Website here are some Steps

Use Secure Passwords
Be Careful When Opening Emails
Install Software Updates
Use a Secure Website Hosting Service
An SSL Certificate Keeps Information Protected
Secure Folder Permissions
Run Regular Website Security Checks.

Install SSL certificate and antivirus or antimalware software
Always use unique and strong passwords
Update all your software’s regularly
Never click on suspicious emails or attachments
Always backup your data

1. Set up auto-update (for vulnerable plugins and software with WebARX)
2. Install web application firewall
3. Keep off-site backups
4. Use strong unique pass-phrases
5. Harden you site

All the points pointed here are absolutely right. Also, some of the things to add-on is:
Use An SSL Certificate to keep Information Protected
Secure Folder Permissions(I do it directly with the security option available in Mac)
Run Regular Website Security Checks

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HI, there are a number of checklists you can check through. Here is the spam filtering essential checklist:
1. use an RBL
2. set your server to require correct SMTP handshake protocols
3. use RV to reject email to non existent addresses
4. block dangerous attachment types
5. scan for viruses
6. set the appropriate spam score for your organization
7. enable end user spam feedback
8. Train your staff / end users
9. I am not sure I can send the link on here for the above list but there are others on there. Happy to link privately to you if that will help you.
10. also here is a podcast on web filtering that maybe helpful https://www.titanhq.com/videos-podcasts/

Security of a website is of utmost importance to keep hackers and cyber-thieves from accessing sensitive information. Even though you might feel that a hacker might have no interest in your website since the site has anything worth being hacked for, but the hard truth is that websites are compromised all the time. Therefore, without a good security strategy, attacks on websites cannot be avoided.

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