IP Address Lookup
IP address spoofing (known as "IP spoofing") is a technique used to forge the original source of Internet Protocol (IP) packets to impersonate another computer system with authorized access, hiding the sender's identity, or both. A bogus IP address source helps cybercriminals launch devious online attacks like Distributed Denial-Of-Service (DDoS). DDoS attacks are a widespread type of cyber threat that in recent years has accelerated in both volume and frequency. According to the University of California San Diego, between March 2015 and February 2017 alone, almost 30% of the internet was targeted by DDoS attacks.
In computer networking, the Internet Protocol is the primary framework used to send and receive data over the internet. Data is broken into several IP packets, which are autonomously transmitted then reassembled at the end. Every data packet contains a "body" preceded by a header filled with basic routing information, including the source IP address, among other general information (region, city/town). Further details on the sender's identity or the devices used are never disclosed. When the packet is spoofed, the sender address in the header has been tampered with by replacing the real origin (fraudulent in nature) with a seemingly legitimate, trustworthy one.
IP spoofing is illegal only when used for malicious purposes, such as stealing sensitive data and using it to commit fraud, identity theft, or other crimes. Otherwise, IP spoofing is perfectly legal if it serves, for instance, as a testing method for business websites.
IP spoofing allows cyber thieves to mimic and pass as trusted sources by using another source's IP to conduct malicious actions without being detected. Attackers can crash servers, infect devices with malware, and compromise personal data. IP spoofing poses the following dangers:
The most common IP spoofing cyber-attacks are:
Cybersecurity specialists have developed multiple strategies to recognize and prevent IP spoofing, such as:
A popular mitigation solution relies on Deep Packet Inspection (DPI) that goes beyond the source IP address and engages in-depth granular analysis of all data packet headers to spot and block abnormalities and suspicious traffic such as identical Total Length headers.
End-users can also take steps to minimize their exposure to IP spoofing: