A type of cyber attack where attackers create fake websites that mimic legitimate ones to steal user credentials, financial information, or personal data.

Phishing - What It Means & How It Works

What is Phishing?

Phishing is a type of cyber attack where malicious actors create deceptive websites, emails, or messages that impersonate legitimate organizations to trick victims into revealing sensitive information. This includes login credentials, credit card numbers, personal data, and financial information. Phishing attacks frequently leverage domain-based techniques like typosquatting and homoglyph attacks to make fraudulent sites appear authentic.

How Phishing Works

Attack Lifecycle

1. Target selection: Identify victims (mass or targeted)

2. Lure creation: Craft convincing message or website

3. Domain setup: Register deceptive domain name

4. Distribution: Send emails, messages, or ads

5. Credential capture: Harvest victim information

6. Exploitation: Use or sell stolen data

Common Phishing Vectors

Vector	Method	Example
Email	Spoofed sender, malicious links	"Your account suspended" emails
Website	Cloned login pages	Fake bank login portal
SMS (Smishing)	Text messages with links	Package delivery scams
Voice (Vishing)	Phone calls	Fake tech support
Social Media	Direct messages, fake profiles	"Win a prize" messages

Domain-Based Phishing Techniques

Typosquatting

Registering misspelled versions of legitimate domains:

Legitimate: amazon.com

Phishing: amaz0n.com, amazom.com, amaazon.com

Homoglyph Attacks

Using visually similar characters:

Legitimate: apple.com
Phishing:   аррӏе.com (Cyrillic characters)

Subdomain Tricks

Placing legitimate brand as subdomain:

Legitimate: paypal.com Phishing: paypal.com.malicious-site.com

paypal-secure.fakesite.com

Combosquatting

Combining brand names with common words:

paypal-login.com amazon-support.com

netflix-billing.com

Types of Phishing Attacks

Mass Phishing

Sent to thousands of recipients
Generic messaging
Low success rate, high volume
Often uses botnets for distribution

Spear Phishing

Targeted at specific individuals
Personalized content
Higher success rate
Researched victim information

Whaling

Targets executives and high-value individuals
Sophisticated social engineering
Often involves business requests
High-stakes financial fraud

Clone Phishing

Duplicates legitimate emails
Replaces attachments or links
References previous communication
Appears to be follow-up

Recognizing Phishing Attempts

Red Flags

1. Urgent language: "Act now or lose access"

2. Generic greetings: "Dear Customer" instead of your name

3. Suspicious URLs: Hover to reveal actual destination

4. Poor grammar: Spelling and formatting errors

5. Mismatched branding: Inconsistent logos or design

6. Unusual requests: Asking for passwords via email

7. Suspicious sender: Email domain doesn't match company

Technical Indicators

# Check email headers for:
SPF/DKIM/DMARC failures
Mismatched From: and Reply-To:
Recent domain registration dates
Non-HTTPS login forms

Protection Measures

For Individuals

1. Verify URLs carefully: Check domain before entering credentials

2. Use password managers: They won't autofill on fake sites

3. Enable MFA: Extra layer beyond passwords

4. Report phishing: Help protect others

5. Keep software updated: Security patches prevent exploitation

For Organizations

1. Email authentication: Implement SPF, DKIM, DMARC

2. Domain monitoring: Watch for lookalike registrations

3. Employee training: Regular phishing awareness programs

4. Incident response: Plan for compromised credentials

5. Defensive domain registration: Register common typos

Business Impact

Average cost per phishing attack: $4.76 million (IBM 2023)
90% of data breaches involve phishing
Credential theft leads to further attacks
Regulatory penalties for data exposure

Phishing remains one of the most prevalent and effective cyber threats, making domain-based detection and email authentication essential defensive measures for both individuals and organizations.

Phishing