What is phishing and how can you protect yourself from this type of cyberattack?

Phishing is one of the most common threats in the field of cybersecurity. Companies and individual users are exposed daily to this type of digital fraud, which aims to steal sensitive information through increasingly sophisticated deception techniques.

In this article from Océano IT, we explain what phishing is, how it works, the different types that exist, and how you can effectively protect yourself.

What is phishing?

The phishing is a type of cyberattack based on identity theft. Cybercriminals impersonate legitimate entities (banks, tech companies, public administrations, etc.) to deceive users and obtain confidential data.

The information they aim to obtain typically includes:

• Passwords
• Bank details
• Card numbers
• Personal information

The ultimate goal is usually financial fraud or unauthorized access to systems and accounts.

How does phishing work?

Phishing is based on social engineering, meaning it manipulates users psychologically to make them commit a mistake.

Common phases of a phishing attack

• 1. Contact: the attacker sends an email, SMS, or message pretending to be a trusted entity.
• 2. Deception: an urgent or alarming message is created (account blocked, login attempt, etc.).
• 3. Redirection: the user clicks on a link that leads to a fake website.
• 4. Data theft: the victim enters their credentials without realizing they are on a fraudulent site.

Most common types of phishing

There are different types of phishing depending on the channel used and the level of personalization of the attack.

• Email phishing: the most common type. Fraudulent emails are sent pretending to be well-known companies.
• Smishing: the attack is carried out via SMS, including malicious links or requests for information.
• Vishing: involves phone calls where the attacker impersonates an official entity.
• Spear phishing: targeted attacks aimed at specific individuals or companies, using personalized information to increase credibility.
• Phishing on social media: fake messages or profiles designed to deceive users on platforms such as LinkedIn, Instagram, or Facebook.

Signs to detect a phishing attempt

Detecting phishing in time is key to avoiding serious consequences. These are some common warning signs:

• Spelling or grammatical errors in the message
• Suspicious email addresses that do not match the company
• Urgency or threats (“your account will be blocked”)
• Strange or shortened links
• Requests for sensitive data via email or SMS

How to protect yourself from phishing

Preventing phishing requires a combination of technology, training, and good practices.

Basic protection measures

• Always verify the sender before clicking
• Avoid accessing suspicious links
• Use two-factor authentication (2FA)
• Keep systems and antivirus updated
• Train employees in cybersecurity

Advanced measures for businesses

• Implementation of advanced email filtering
• Threat monitoring
• Phishing attack simulations
• IT security policies

Impact of phishing on businesses

Phishing does not only affect individual users. Companies can suffer serious consequences:

• Direct financial losses
• Data breaches
• Reputational damage
• Legal issues and penalties

For this reason, investing in business cybersecurity is no longer optional, but a strategic necessity.

Frequently asked questions about phishing

What is phishing in simple terms?

Phishing is a type of digital fraud in which an attacker impersonates a legitimate entity to deceive someone and steal their confidential data.

How can I tell if an email is phishing?

You can identify it if it contains errors, suspicious links, unjustified urgency, or requests for sensitive data. You should always verify the sender before taking action.

What should I do if I have been a victim of phishing?

You should immediately change your passwords, contact your bank if you have shared financial data, and report the incident to cybersecurity experts.

Does phishing only affect businesses?

No. Phishing affects both businesses and individuals, although organizations are often more attractive targets due to the volume of data they handle.

What tools help prevent phishing?

The main tools include email filters, antivirus software, threat detection systems, and two-factor authentication.