Spoofing

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What is Spoofing?

The definition of spoofing is a type of scam where a hacker forges their identity to imitate a legitimate business or reliable source. In a spoofing scam, the cybercriminal will attempt to trick the victim into handing over personal information, such as account or payment details, so they can steal it to commit cybercrime.

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Threat actors can disguise their identities in a number of ways, including forging their email, website, IP address, caller ID, or GPS location.

What is Spoofing?

Key Takeaways

  • Spoofing is a type of scam that relies on tricking the user into mistaking the hacker’s identity.
  • Phishing and spoofing are similar but different.
  • Hackers often use spoofing to enhance phishing and social engineering scams.
  • Detecting spoofing is easier said than done.
  • You can protect yourself by ignoring calls and emails from unknown senders.

How Spoofing Works

In a spoofing scam, the hacker aims to disguise their identity to try and trick a victim into handing over personal information. Typically, this is done by spoofing an email header, website, or caller ID.

Spoofing, in a cybersecurity context, is often used to enable social engineering and phishing scams. In a common phishing scam, a fraudster may spoof their email header to obfuscate who sent the email.

They could do this by imitating a reputable organization, such as Microsoft Office 365 customer support, and then trying to persuade the user to click on a malicious link or attachment.

In such a scam, clicking on the link could redirect the user to a spoofed website that imitates the Microsoft Office 365 login portal, trying to trick the user into handing over their username and password. Likewise, clicking on the attachment could download malware to the user’s device.

Types of Spoofing

Types of Spoofing

As mentioned above, spoofing attacks can come in all different shapes and sizes.

Some of the most common types of spoofing attacks include:

Email spoofing
A hacker forges an email header or sender URL to try and trick the victim into clicking on a malicious link or attachment. 

Website/URL spoofing
An attacker creates a fake domain and website to try and bait the user into entering personal information or downloading malware. 


IP spoofing
A threat actor will create IP packets with a false source IP address to try and disguise malicious traffic.
Caller ID spoofing
A fraudster modifies the phone number and caller ID name that appears when they call a victim. 
Text message spoofing or smishing (SMS phishing)
A hacker sends a text message pretending to be from a reputable source.
DNS spoofing or a cache poisoning attack
A hacker exploits vulnerabilities in a DNS to redirect traffic to a fraudulent site.
GPS spoofing
A cybercriminal manipulates their device’s GPS data to appear to be in another location. 
Facial spoofing
A criminal spoofs the victim’s face to compromise a device locked with a facial identification mechanism. 

Phishing vs. Spoofing

Phishing and spoofing are two types of scams that rely on misdirection, but they have a distinct difference.

Essentially, phishing is a technique designed to trick a user into handing over information, whereas spoofing is a technique used by an attacker to disguise their identity, involving creating a false website, URL, or caller ID so they can appear to represent a legitimate source.

Both phishing and spoofing can be used as part of a single cyber attack. For instance, in a phishing scam, a hacker might spoof an email header and link to a spoofed website to make the misdirection more convincing.

How to Detect Spoofing

Detecting spoofing can be very difficult, but there are some basic ways that you can detect website, email, and caller ID spoofing.

A brief summary of these can be found below:

Website spoofing
When visiting sites, verify that they have a green bar, lock symbol, SSL certificate, and HTTPs in the URL as these are positive indicators that the site is legitimate.

Email spoofing
Check incoming emails for poor spelling, incorrect grammar, high-pressure language, and unusual URLs as these are telltale signs of a phishing scam.

Caller ID spoofing
If someone calls you claiming to represent a reputable organization or government department and is requesting certain information, hang up and contact the company they claim to represent via the official website. This helps verify whether the call is real or not. 

7 Ways to Protect Yourself From Spoofing

There are a wide range of ways to protect yourself against spoofing attacks.

7 Ways to Protect Yourself From Spoofing

Some of the most effective include:

  1. Activate biometric authentication

    Use biometric authentication options such as face or touch ID to make your online accounts more difficult to compromise.
  2. Enable multi-factor authentication

    Activating multi-factor authentication (MFA) for your online accounts makes them much harder to compromise, even if the user has stolen the underlying password
  3. Verify on a separate channel

    If you receive a call or email claiming to be from someone you know who is requesting private information, reach out to them via another channe, such as their phone, website, or email, to check if the communication is legitimate.
  4. Don’t click on links or attachments from unknown senders

    Avoid clicking on links or attachments in emails from unknown senders, and be very cautious about clicking on ones from known senders.
  5. Don’t answer calls from unknown senders

    When possible, avoid answering calls from unknown senders, as these are likely to be scam calls.
  6. Install anti-malware software

    Deploy anti-malware and antivirus software on your devices so that they can spot infections and quarantine infected files before they have a chance to infect your system.

  7. Use a password manager

    Use a password manager with autofill to help recognize spoofed websites (the password manager won’t autofill your data into the site if it doesn’t recognize it). 

    Is Spoofing Illegal?

    Yes and no. Regulators such as the Federal Communications Commission (FCC) consider spoofing illegal if it is done with the “intent to defraud, cause harm, or wrongly obtain anything of value.” So, if someone spoofed their phone number to try and steal your personal data, then this would be illegal, and they would be exposed to penalties of up to $10,000 per violation.

    That being said, the FCC does highlight cases where spoofing would be considered legal. For example, if a doctor calls a patient from a personal mobile phone and displays their office phone number rather than their personal phone number, or if a business displays a toll-free call back number.

    The Bottom Line

    Now you know the meaning of spoofing, the best way to protect against it is to never take what you see online at face value. Just because a website, email, or caller ID appears legitimate, doesn’t mean that it is. Verifying the identity of senders online is critical to reducing the chance of being scammed.

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    References

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    Tim Keary
    Technology Specialist
    Tim Keary
    Technology Specialist

    Tim Keary is a freelance technology writer and reporter covering AI, cybersecurity, and enterprise technology. Before joining Techopedia full-time in 2023, his work appeared on VentureBeat, Forbes Advisor, and other notable technology platforms, where he covered the latest trends and innovations in technology.