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Spoofing attacks continue to be the source of significant security breaches across many industry verticals. But what is spoofing, exactly, and how can organizations put defenses in place to avoid becoming a victim of a spoofing attack?

In this short overview, “What is a spoof attack?”, we’ll provide a spoofing definition along with an introduction to the most effective ways of stopping a spoof attack.

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What is a spoof attack?

So, what is a spoof attack and why is it so effective? Spoofing refers to a variety of attacks where a malicious individual masqueradesas someone else or impersonates another device to gain access to sensitive information, to launch attacks against network hosts, to bypass access controls or to spread malicious software.

What is a spoof of an IP address?

IP address spoofing is one of the most common types of attacks. In this method, an attacker sends IP packets from a false source address, often to launch a denial-of-service attack by overloading networks and devices with packets that seem to come from legitimate sources.

What is a spoof of an email header?

In email spoofing, an individual sends an email with a header that appears to have come from someone the recipient knows or trusts. As a result, recipients are much more likely to open the email and click on links, which may launch malware or direct the user to a malicious website.

What is a spoof of the Address Resolution Protocol (ARP)?

ARP spoofing is a type of attack where a hacker sends false ARP messages across a local area network, linking the attacker’s MAC address with the IP address of legitimate network member. If successful, ARP spoofing can cause data intended for the host’s IP address to be sent to the attacker instead.

What is a spoof of a DNS server?

DNS server spoofing involves modifying the DNS server in order to reroute a specific domain name to a different IP address. That new IP address is often controlled by an attacker and may contain files that are infected with viruses and malware.

What is a spoof prevention solution?

Preventing spoofing requires a number of network security tools. Packet filtering can help to block packets with conflicting source address information. Spoofing detection software can inspect and certify data before it is transmitted and block data that may be false. And cryptographically secure network protocols can help by encrypting data before it is sent and authenticating it when it is received.

Learn more about “What is spoof?” or visit our AppSec knowledgebase to learn more about SQL injections and other vulnerabilities that can cause serious security breaches.

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