Common Security Threats and How to Avoid Them

Understanding online threats

Whether you run a simple website, a VPS or a Windows RDP server, what you have online is a target. Attackers use automated tools that scan the internet for weak systems all the time.

Knowing the most common attacks is the best way to prevent them. Here are the main threats to hosting customers and how to defend against them.

1. Password-guessing (brute-force) attacks

• What it is: bots try usernames and passwords over and over until one works. This is a common attack on VPS and RDP servers.
• How to avoid it:
  • Do not use root or Administrator as your everyday login.
  • Use long, random passwords, or SSH keys on Linux.
  • Limit login attempts: on Linux, a tool such as Fail2Ban blocks an IP address after a few failed attempts; on Windows, an account lockout policy locks the account for a while after a few wrong passwords.

2. Phishing

• What it is: an email that pretends to come from a company you trust, such as Lurstan Host, PayPal or your bank. It asks you to click a link and log in, and the page it opens steals your details.
• How to avoid it:
  • Check the link before you click. Does it really go to lurstanhost.com, my.lurstanhost.com or our cPanel server cloud.lurstanhost.net, or to a name that only looks similar?
  • Do not be rushed. Phishing emails often threaten something, such as "your server will be deleted in 24 hours". Log in by typing our address yourself, not through the email.

3. Malware and ransomware

• What it is: harmful software installed on your server or computer. Ransomware locks your files and demands payment to unlock them.
• How to avoid it:
  • Do not download unknown files onto your RDP server or VPS.
  • Keep antivirus switched on, such as Microsoft Defender on Windows or ClamAV on Linux.
  • Keep backups somewhere other than the server. A clean backup is the surest way to recover from ransomware.

4. DDoS attacks (distributed denial of service)

• What it is: an attacker floods your server with fake traffic until your website or service stops responding.
• How to avoid it:
  • For a website, a proxy service such as Cloudflare sits in front of your server, hides its real IP address and absorbs much of the attack.
  • Watch your resource use. A sudden, unexplained rise in CPU or bandwidth can mean an attack.

5. SQL injection and outdated software

• What it is: attackers use weaknesses in old versions of website software, plugins or themes (WordPress, Joomla and others) to put harmful code into your site or database.
• How to avoid it:
  • Keep your website software, plugins and themes up to date. Turn on automatic updates where you can.
  • Delete plugins and themes you do not use. Unused plugins are a common way in.

Summary

Security is not about being impossible to hack; it is about being a hard target. Keep your software updated, use strong unique passwords and keep regular backups, and you will be protected from most common attacks.