Spoofing is faking an identity. An attacker forges a sender address, a caller ID, a website or an IP address so that a message or connection looks like it came from someone it didn’t. Phishing is the scam that usually rides on top of that disguise: a message built to get you to hand over a password, card details or money, or to open malware. Put simply, spoofing is the costume and phishing is the con.
Most phishing uses some spoofing, but not all spoofing is phishing. A forged IP address in a network attack spoofs a source without ever asking a human for anything. That’s the core of the difference between phishing and spoofing, and it changes how you defend against each.
Phishing vs spoofing at a glance
| Phishing | Spoofing | |
|---|---|---|
| What it is | A social engineering scam that tricks a person into giving up data, money or access | Forging the identity of a sender, phone number, website or network address |
| Goal | Steal credentials, card data or money, or plant malware | Look trustworthy, or hide where traffic really comes from |
| Is it a complete attack? | Yes. It works when the victim acts on the message | Not always. It’s a technique used inside other attacks |
| Needs a human to fall for it? | Yes | Only when it’s used for fraud. IP and ARP spoofing target machines |
| Common forms | Email phishing, spear phishing, smishing (SMS), vishing (voice), fake login pages | Email sender spoofing, caller ID spoofing, lookalike domains, IP, ARP and DNS spoofing |
| Main defenses | Awareness training, MFA, link and attachment filtering, taking down phishing sites | SPF, DKIM and DMARC for email, domain monitoring, network filtering |
What is phishing?
Phishing is a form of criminal activity using social engineering techniques, characterized by attempts to fraudulently acquire sensitive information, such as passwords and credit card details, by masquerading as a trustworthy person or business in an apparently official electronic communication, such as an email or an instant message. The term phishing arises from the use of increasingly sophisticated lures to “fish” for users’ financial information and passwords.
It is still the most reported cybercrime in the United States. The FBI’s Internet Crime Complaint Center received 191,561 phishing and spoofing complaints in 2025, more than any other crime type in its 2025 Internet Crime Report. The Anti-Phishing Working Group counted 971,181 phishing attacks in the first quarter of 2026 alone, according to its Q1 2026 Phishing Activity Trends Report.
With the growing number of reported phishing incidents, additional methods of protection are needed. Attempts include legislation, user training, and technical measures. We cover the main variants in 10 types of phishing attacks.
What is spoofing?
Spoofing means forging the details that identify a sender so that something looks like it came from a trusted source. Almost anything that identifies a sender can be faked:
- Email spoofing. The From address or display name is forged so a message appears to come from your bank, your CEO or a supplier.
- Caller ID and SMS spoofing. The number shown on your phone is set to match a real company or a government office.
- Website and domain spoofing. A copy of a real site sits on a lookalike domain, often one character off the real name or on a different extension.
- IP spoofing. Network packets carry a fake source IP address.
- ARP and DNS spoofing. Traffic inside a network, or a domain lookup, is pointed at a machine the attacker controls.
How IP spoofing works
Spoofing at the network level is the creation of TCP/IP packets using somebody else’s IP address. Routers use the “destination IP” address in order to forward packets through the Internet, but ignore the “source IP” address. That address is only used by the destination machine when it responds back to the source.
A common misconception is that “IP spoofing” can be used to hide your IP address while surfing the Internet, chatting online, sending email, and so forth. This is generally not true. Forging the source IP address causes the responses to be misdirected, meaning you cannot create a normal network connection.
However, IP spoofing is an integral part of many network attacks that do not need to see responses (blind spoofing). Common examples:
- Man in the middle: packet sniffing on the link between two end points, so the attacker can pretend to be one end of the connection.
- Routing redirect: routing information is redirected from the original host to the attacker’s host, another form of man in the middle attack.
- Source routing: individual packets are redirected through the attacker’s host.
- Blind spoofing: the attacker predicts responses from a host, so commands can be sent without seeing immediate feedback.
- Flooding: a SYN flood fills the receive queue from random source addresses, while smurf and fraggle attacks spoof the victim’s address so that everyone responds to the victim.
None of these ask a person to click anything. That’s why spoofing on its own isn’t phishing.
How spoofing and phishing work together
The two meet most often in business email compromise. A typical case: someone in finance gets an email that seems to come from the CFO, or from a regular supplier, asking for an urgent change to bank details before a payment run. The sender name is spoofed, or the domain is a near copy of the real one. The request itself is the phishing. The FBI’s 2025 report counted 24,768 business email compromise complaints with reported losses of about $3.05 billion, as shown in the IC3 2025 report.
It works the other way round too. Plenty of phishing uses no real spoofing at all: a free webmail account named “Account Security Team” is just a convincing label. And a spoofed IP in a flooding attack is spoofing with no phishing involved.
How to stop each one
Against spoofing
For email, the fix is authentication on your own domains. SPF lists which servers may send for you, DKIM signs your messages, and DMARC tells receiving servers what to do with mail that fails those checks. A DMARC policy of “reject” tells them to block it. CISA’s Binding Operational Directive 18-01 required US federal agencies to reach a DMARC policy of reject within one year. Gmail has also required senders of more than 5,000 messages a day to set up DMARC since February 1, 2024, per Google’s sender guidelines.
DMARC has a limit, though. It protects domains you own. It can’t stop mail sent from a lookalike domain somebody else registered last week. Those have to be found and removed, which is what a takedown service does. TIKAJ and its platform Hunto handle more than 100,000 takedowns a year for over 150 enterprise customers.
Against phishing
- Turn on MFA for email, banking and admin accounts, so a stolen password isn’t enough on its own.
- Check the actual sender domain, not just the display name. Hover over links before you click.
- Treat urgency, payment changes and login prompts as reasons to verify through a channel you already trust.
- Give staff a one-click way to report suspicious mail, and act on the reports quickly.
Pharming is a third attack that often gets mixed up with these two. We explain it in the difference between phishing and pharming.
FAQ
Is spoofing the same as phishing?
No. Spoofing is a technique: faking a sender address, phone number, website or IP address. Phishing is a scam whose goal is to get you to give up credentials, money or data. Phishing often uses spoofing to look believable, but spoofing can be used in attacks that never involve tricking a person, such as IP spoofing in a flooding attack.
What is a spoofing attack vs a phishing attack?
A spoofing attack is any attack that depends on a forged identity, whether it targets people or machines. A phishing attack specifically targets people with a deceptive message and asks them to act: click, log in, pay or open a file. If the message also fakes a real sender, it is both a spoofing attack and a phishing attack.
Can I be spoofed without being phished?
Yes. Criminals can send mail that pretends to come from your domain, or place calls that show your company’s number, without your involvement. You are the one being spoofed and your customers are the ones being phished. Publishing a DMARC reject policy and watching for lookalike domains are the two steps that cut this down.
What should I do if my email domain is being spoofed?
Check that SPF and DKIM are set up for every service that sends mail for you. Publish DMARC, read the aggregate reports, then move to quarantine and reject. If the fake mail comes from a lookalike domain instead, report it to the registrar and host, or use a takedown provider to get the domain and any phishing pages removed.