--- title: "What is IP Spoofing and How Can Businesses Protect Themselves Against it | DuoCircle" description: "When it comes to your business’s online security, there is no such thing as being too vigilant." image: "https://www.duocircle.com/images/og-default.png" canonical: "https://www.duocircle.com/blog/email-security/what-is-ip-spoofing-and-how-can-businesses-protect-themselves-against-it/" --- Quick Answer IP spoofing is the practice of forging the source IP address in network packets so traffic appears to come from a trusted host. Three common attack types: DoS/DDoS (flood a target while hiding the attacker's identity); man-in-the-middle (insert into an existing connection by impersonating one endpoint); and botnet command-and-control (compromised hosts beacon under spoofed identities). Defenses: deploy ingress and egress filtering (BCP 38) to drop packets with source addresses that should not arrive on a given interface, require authentication beyond IP (TLS with mutual auth, SPF/DKIM for email, MFA for users), monitor for traffic patterns inconsistent with normal IP behavior, and segment networks so a spoofed packet on one segment cannot reach sensitive systems on another. Share [ ](https://www.linkedin.com/sharing/share-offsite/?url=undefined%2Fblog%2Femail-security%2Fwhat-is-ip-spoofing-and-how-can-businesses-protect-themselves-against-it%2F "Share on LinkedIn") [ ](https://twitter.com/intent/tweet?text=What%20is%20IP%20Spoofing%20and%20How%20Can%20Businesses%20Protect%20Themselves%20Against%20it&url=undefined%2Fblog%2Femail-security%2Fwhat-is-ip-spoofing-and-how-can-businesses-protect-themselves-against-it%2F "Share on X/Twitter") [ ](https://www.facebook.com/sharer/sharer.php?u=undefined%2Fblog%2Femail-security%2Fwhat-is-ip-spoofing-and-how-can-businesses-protect-themselves-against-it%2F "Share on Facebook") [ ](https://reddit.com/submit?url=undefined%2Fblog%2Femail-security%2Fwhat-is-ip-spoofing-and-how-can-businesses-protect-themselves-against-it%2F&title=What%20is%20IP%20Spoofing%20and%20How%20Can%20Businesses%20Protect%20Themselves%20Against%20it "Share on Reddit") [ ](mailto:?subject=What%20is%20IP%20Spoofing%20and%20How%20Can%20Businesses%20Protect%20Themselves%20Against%20it&body=Check out this article: undefined%2Fblog%2Femail-security%2Fwhat-is-ip-spoofing-and-how-can-businesses-protect-themselves-against-it%2F "Share via Email") ![IP Spoofing](https://media.mailhop.org/duocircle/images/2022/12/spf-record-tester-7426.jpg) When it comes to your business’s online security, there is no such thing as being too vigilant. Cyber threats lurk around every corner, waiting for the opportune moment to strike. One such cyber threat is [IP spoofing](https://www.cloudflare.com/learning/ddos/glossary/ip-spoofing/). IP spoofing can lead to a devastating **loss of sensitive business data** and assets. Read on to learn what it is and how you can protect your business from it. ## What is IP Spoofing? IP (Internet Protocol) spoofing is a type of spoofing attack. Spoof means to trick or imitate\_.\_ So, IP spoofing is the term used to describe a cyber attacker imitating another computer system. Data is sent across the internet **via packets**. Each packet contains information about the source of the data, including the data sender’s IP address. With IP spoofing, cyber attackers [change IP addresses](https://www.airband.co.uk/why-has-my-ip-address-changed/) to impersonate **credible and trusted ones**. This way, the data is accepted, and the attack is free to be carried out. _IP Spoofers can gain access to sensitive data, infect machines with viruses, or crash servers._ They are often difficult to detect until it is too late and the damage has been done. Any individual or business can fall victim to an IP spoofing attack, whether it offers a [small business VoIP solution](https://www.dialpad.com/products/small-business-voip/) or graphic design services. ## Types of IP Spoofing Attacks There are different types of IP spoofing attacks, depending on the attacker’s goal. Here are three common types that you should be aware of: - **DoS attacks:** A [DoS (Denial of Service) attack](https://www.a10networks.com/blog/5-most-famous-ddos-attacks/#:~:text=In%20November%202021%2C%20Microsoft%20mitigated,largest%20DDoS%20attack%20ever%20recorded.) involves attackers sending large amounts of data to slow down or **crash a server**. Attackers conceal their identity with IP spoofing and remain anonymous. Because the attacker cannot be differentiated from legitimate users, they will likely not be implicated in the attack. They are, therefore, free to carry out other attacks, such as stealing personal information. Attackers also use DoS attacks to **demand ransoms** from their victims. When the victim pays the ransom, they regain access to their services. - **Man-in-the-middle attack:** A man-in-the-middle IP spoofing attack is when a cyber attacker places themselves in the middle of an existing communication between two people or devices. The attacker thus impersonates a trusted source. This form of attack enables the attacker to gain access to an abundance of information over time. If you don’t have robust [email security services](/content/email-security-services) in place, attackers can **steal sensitive data**. They can also direct the victim to fake websites where they input their personal information and credit card details. - **Botnet Attacks:** [Botnet attacks](https://datadome.co/learning-center/what-is-botnet-how-does-botnet-attack-work/#:~:text=A%20botnet%20attack%20is%20any,and%20other%20large%2Dscale%20cybercrime.) can cause chaos by crashing a network. Or, they can be carried out anonymously with no one noticing. With Botnet attacks, attackers infect a **group of devices with malware**. They either work silently in the background of a victim’s device, stealing information. Or, use a botnet attack to carry out a DoS attack, flooding the system or [website architecture](https://www.bigcommerce.com/articles/ecommerce-website-development/ecommerce-architecture/#-ways-to-optimize-your-ecommerce-architecture) so that it crashes. [![ip-spoofing](https://media.mailhop.org/duocircle/images/2022/12/what-is-DKIM.jpg)](https://media.mailhop.org/duocircle/images/2022/12/what-is-DKIM.jpg) ## What are the Risks of IP Spoofing? What makes IP spoofing so dangerous is how difficult it is to detect. As with most cyber attacks, the goal of IP spoofing is normally to **make money**. It’s one of the most common types of cybercrimes reported. Attackers have lots of ways to do this: - Steal directly from a bank account - Trick the victim into paying them - **Steal sensitive data and sell it** - _Hold sensitive data or services for a ransom_ Attackers may steal sensitive information about a person or business and sell it to criminals. Personal information can subsequently be used for [identity theft](https://www.investopedia.com/terms/i/identitytheft.asp). ## How to Protect Your Business From IP Spoofing Although IP spoofing can be difficult to detect, there are steps you can take to help [protect your business from attacks](https://www.ssltrust.com.au/blog/protection-from-domain-hijacking). ### Packet filtering [Packet filtering](https://www.techtarget.com/searchnetworking/definition/packet-filtering) uses network monitoring tools to analyze IP addresses attempting to connect with a network. Firewalls, for example, can use packet filtering to detect **inconsistencies within IP addresses**. If inconsistencies are detected, the IP address will be blocked from connecting to the network. There are two types of packet filtering: **Ingress filtering:** Analyzes traffic coming into your business’s network. Therefore, it helps **prevent any damage** from outside sources. **Egress filtering:** Analyzes traffic **going out of your network** to ensure no one from inside your network is launching an IP spoofing attack. ### Strong Firewalls A strong firewall is your first line of defense against IP spoofing. Select a strong firewall with **spoof detection capabilities**. Ensure that your firewall is regularly updated and configured so that it remains an effective preventative cyber attack measure. ### DLP Software Since stealing data is the objective of many cyber criminals, installing [DLP (Data Loss Prevention)](https://digitalguardian.com/blog/what-data-loss-prevention-dlp-definition-data-loss-prevention) software into your systems is a must. It **helps to keep data safe** by preventing unauthorized persons from accessing it. It also protects your business from insiders misusing data and sharing it with people outside of your network. A [contact center VoIP](https://www.dialpad.com/products/voip-call-center/), for example, will need DLP software in place to protect all its VoIP customers. _DLP software offers IP protection, data visibility and secures personal and identifiable information_. It uses preventative methods like encryption, as well as consistently **monitoring data** to ensure it remains secure. [![cybersecurity](https://media.mailhop.org/duocircle/images/2022/12/spf-validator-4932.jpg)](https://media.mailhop.org/duocircle/images/2022/12/spf-validator-4932.jpg) ### Train Employees To optimize business [cybersecurity](/) and minimize the potential threat of IP spoofing, **train your employees** to practice good cyber habits. These include: - Use trustworthy websites with HTTPS. - Use strong, randomized passwords that would be impossible to guess. - Change passwords regularly. - Be aware of spelling, grammar, and punctuation errors in emails and other communication methods to [prevent email phishing](/content/phishing-prevention) attacks. - Have security measures in place if employees are working from home. - Not clicking on email links, go to websites via the web address bar instead. This is especially important for remote workers. The pandemic provided fresh opportunities for cyber attacks. Employees worked from home without the same strict security measures in place as a business might have. As such, in 2020, [Zscaler](https://www.zscaler.com/blogs/security-research/30000-percent-increase-covid-19-themed-attacks) reported a 30,000% increase in cyber attacks aimed at people working remotely. [Nudge training](https://elearningindustry.com/employees-need-nudge-for-security-training) is a brilliant method of instilling good cyber habits. It uses software to prompt employees to take specific actions in specific circumstances. For example, **updating the internet security** or thinking carefully before clicking on a link. It also flags risky online behavior and praises good online behavior. ## Wrapping Up Being the victim of a cyber attack is a daunting prospect. Businesses are especially at risk as they have much to lose through a successful attack like IP spoofing. Remain aware of **cyber security risks** and take steps to prevent IP spoofing. **Bio:** ### Jenna Bunnell, Senior Manager, Content Marketing, Dialpad Jenna Bunnell is the Senior Manager for Content Marketing at Dialpad, an AI-incorporated cloud-hosted unified communications system that provides valuable call details for business owners and sales representatives using [Dialpad’s live video calling](https://www.dialpad.com/features/video-call/). She is driven and passionate about communicating a brand’s design sensibility and visualizing how content can be presented in creative and comprehensive ways. Jenna has also written for other domains such as [FreshySites](https://freshysites.com/web-design-development/how-to-improve-websites-user-experience-surveys/) and [BlockSurvey](https://blocksurvey.io/guest-posts/identifying-customer-needs). Check out her [LinkedIn](https://www.linkedin.com/in/jenna-bunnell/) profile. [![](https://media.mailhop.org/duocircle/images/2022/12/jenna-bunnell-300x300.jpg)](https://media.mailhop.org/duocircle/images/2022/12/jenna-bunnell.jpg) ## Topics NewsSecurityUpdates ![Brad Slavin](https://media.mailhop.org/dmarcreport/images/team/brad-slavin.jpg) Brad Slavin General Manager General Manager at DuoCircle. Product strategy and commercial lead across the email security portfolio. ## Secure your email infrastructure Protect, authenticate, and deliver. Contact our team to find the right solution. [Contact Sales](/contact/) [Explore Products](/products/) ## Related Articles [ Email Security 7m 10 Crucial Tips that Will Help You Avoid Spam Filters and Send Better Emails Feb 14, 2023 ](/blog/email-security/10-crucial-tips-that-will-help-you-avoid-spam-filters-and-send-better-emails/)[ Email Security 9m 7 Best Ways to Prevent Fraud Before It’s Too Late Jul 28, 2022 ](/blog/email-security/7-best-ways-to-prevent-fraud-before-its-too-late/)[ Email Security 10m 7 Email Security Risks Facing Small Business Owners and How to Defend Against Them Feb 7, 2023 ](/blog/email-security/7-email-security-risks-facing-small-business-owners-and-how-to-defend-against-them/)[ Email Security 9m 7 Tips to Reinforce Your Business Email Security Nov 9, 2022 ](/blog/email-security/7-tips-to-reinforce-your-business-email-security/) ```json {"@context":"https://schema.org","@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. 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