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What can someone do with my IP address?

Aug 20, 2020 · 4 min read

What can someone do with my IP address?

Your IP address is essential for sending and receiving information online. However, hackers can use it to seize very valuable information, including your location and online identity. Using this information as a starting point, they could potentially hack your device, steal your identity, and more.

There are dangers to someone knowing your IP address, but they’re rarely discussed. Before we begin, let’s start with finding out what your personal IP address is: What is my IP?

By the end of this post, you’ll know what to protect yourself against and discover ways to hide your IP address. Pretty neat.

How can someone find my IP address?

Your IP address is a unique string of numbers assigned to you by your ISP – like a delivery address for online traffic. If you connect to a different Wi-Fi or move house, your IP address will change along with your location. Most ISPs use dynamic IP addresses, which aren’t fixed to your device, but you can have a static IP if you wish to.

Since your IP address holds certain information about you, someone may want to use it for malicious purposes. There plenty of ways people can get hold of your IP address. Here are just a few:

    1. If you torrent files. When you download content from torrent sites, every member of the swarm (total seeders and leechers) can see your IP address. All they need to do is check the list of peers.
    2. By borrowing your device. If somebody borrows or uses your computer, they can find out what your IP address is in seconds, as there are countless free websites that let you do that.
    3. From an email. If you send an email to someone, they can check the header of the message, which could contain your IP address. Yahoo! and Microsoft Outlook are known to include IP addresses in the email header.
    4. Clicking on a link. Any link you click on will need to provide your iP address for the server at the other end to deliver the content provided by the link. Whoever owns that server will see your IP address.

What can people do with your IP?

While your IP address won’t give away sensitive information like your phone number and address, it can still be used against you and have devastating consequences:

  • Someone can get your location and intrude on your privacy in real life

    Your IP address shows what city you’re in, so if someone ill-intentioned finds it out, you could be in trouble. Let’s say you’ve announced that you’re going on holiday on your social media. A criminal only needs to do a little extra digging to find your house and burgle it while you’re away.

  • Someone can use your IP to hack your device

    The internet uses ports as well as your IP address to connect. There are thousands of ports for every IP address, and a hacker who has your IP can try all of those ports to brute-force a connection, taking over your phone for example and stealing your information.

    If a criminal does get access to your device, they could also install malware on it, which could expose your IP.

  • Someone can impersonate you to get hold of your IP address

    Your ISP could reveal your IP address to someone else. Criminals who know your name on social media can contact your ISP and try to impersonate you or use a vishing attack to steal your personal details. Remember that telecom operators are only humans who use systems with vast amounts of personally identifiable information.

  • Employers can track your activity

    IPs are owned by ISPs, and each IP is assigned to a user. When you’re connected to your work network your employers could potentially see and track everything you do online – giving you hardly any privacy at all.

  • A hacker can hit you with a DDoS attack

    If a hacker has your IP address, they could harm you with a DDoS (Distributed Denial of Service) attack. A DDoS attack uses an army of computers controlled by a hacker to flood your device with traffic so it disconnects from the internet and completely shuts down.

  • Cybercriminals can frame you for illegal activity

    Hackers are known to use hacked IP addresses to download illegal content that threatens national security as well as anything else they don’t want traced back to them. Protect your IP address, and you will protect yourself.

How do I stop someone from using my IP address?

You should always protect any personally identifiable information even if you think the risks do not apply to you. With enough determination, a bad actor can stitch together an entire identity just by going online, and your IP could be the starting block.

Here are three ways to protect your IP address and prevent yourself from being exploited by hackers:

    1. Change your privacy settings
    2. Change the settings on all your instant messaging as well as any other apps to “private” and don’t accept calls or messages from people you don’t know. Hackers are known to gain access to your IP address through messaging apps like Skype.

    3. Update your firewall and router
    4. A criminal can hack your router remotely and retrieve your IP address, especially if you’re still using the default one. Change the password of your router regularly and be sure to use a long mix of upper and lower case letters, numbers, and special characters.

    5. Use a VPN
    6. A VPN completely hides your IP address and encrypts your internet connection. Even better, a VPN bypasses content filters as well as internet access bans and prevents third parties like your ISP from eavesdropping on your data. Your online activity cannot be traced back to you, giving you a powerful layer of security.

A VPN is an essential privacy tool and will protect your IP address from hackers.


Zen Bahar
Zen Bahar successVerified author

Zen likes to use her cybersecurity knowledge to help protect the privacy and freedom of others, otherwise, you can find her playing with paints in her studio in London.


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