Understanding Phishing: How it Works and How to Stay Safe? 

Imagine you receive an email that seems entirely legitimate, only to realize it’s a trap designed to steal your personal information or breach your organization’s network. This deceptive technique is called phishing. It stands as the most widespread cybercrime globally, with billions of spam emails sent daily.   

Let’s take a closer look at phishing, how it works, and most importantly, how to protect yourself against this threat. 

What is phishing? 

Phishing is a social engineering attack where cybercriminals pose as trusted sources through emails or messages to steal personal information like login credentials and financial details. For example, someone may receive an email that looks like it’s from their bank, asking them to click a link to address an issue urgently. Once they click the link and unknowingly enter their information on a fake website, the attacker gains access to their confidential data, potentially leading to identity theft or financial loss.  

On a larger business scale, phishing can lead to more severe repercussions. If even a single scammer manages to enter a corporate network, it can result in a data breach, increasing the organization’s risk of theft and loss. This was evident in the case of Facebook and Google, where an extended phishing campaign led to both companies losing $100 million between 2013 and 2015. Thus, individuals and companies must be aware of phishing and take measures to protect against email security threats. 

READ: How to Identify Phishing Attacks and Protect Yourself Against Them  

How does phishing work? 

In a typical phishing attack, attackers employ various tactics to deceive their targets into entering sensitive information or performing actions compromising their security. Here’s how phishing works:  

• Attackers often start by acquiring the contact details of one or multiple targets. This information can be gained through various means, such as data breaches, social engineering, or simply taking publicly available information from websites and social media.

• Phishers craft convincing and legitimate-looking messages, typically sent via email or text. These messages may create a sense of urgency to prompt the recipient into taking action.

• Attackers often employ social engineering techniques to manipulate the recipient. This can include pretending to be a trusted entity, such as a bank, government agency, or a well-known company. They may use spoofed email addresses that closely resemble legitimate domains or organizations.

• One common tactic is to provide a link in the message, redirecting the victim to a fake website. This website is designed to look identical to a legitimate one by using the same logos, graphics, and branding. The goal is to motivate the victim to enter sensitive information like login credentials, credit card numbers, or personal details.

• In addition to fake websites, phishing attacks can also distribute malware. Clicking on a link or downloading an attachment from a phishing email may install malicious software on the victim’s device, enabling the attacker to steal data, monitor activities, or gain unauthorized access to systems.  

Types of phishing attacks  

Some of the common phishing attacks are explained below:
 

1.Spear phishing 

Spear phishing is the most common method of obtaining confidential information. In this type, attackers target specific individuals within an organization, tailoring their emails with the recipient’s name, job title, work phone number, and other details to make them seem as the sender is familiar with them personally or professionally. This type of phishing is typically carried out by cybercriminals with the resources and capabilities to conduct this more sophisticated form of attack. 

2.Whaling 

Whaling is an advanced form of spear phishing, where attackers target CEOs and other high-level executives, often called “whales.” Given that these individuals usually have unrestricted access to sensitive corporate information, the potential rewards for attackers are significantly high. Whaling is typically performed by sophisticated criminal organizations with the necessary resources to carry out this level of targeted attack. 

3.Clone phishing 

In this attack, the cybercriminal drafts a similar copy of a genuine email, like a notification an individual might typically receive from their bank, to deceive the victim into entering valuable information. The attacker replaces what seems to be a legitimate link or attachment in the original email with a malicious one. The email is often shared from an address that closely resembles the original sender, making it challenging to detect. 

4.Vishing 

Vishing, or voice phishing, involves scammers using a fake caller ID to make it appear as if they’re calling from a trusted organization, like a bank or government agency. They aim to persuade the recipient to answer the call. Once connected, the scammer impersonates an authority figure, using various tactics to demand payment for supposed debts. Vishing may also include sending voicemail messages instructing victims to call back, where they’re tricked into sharing personal or account information. 

5.Snowshoeing 

A snowshoeing attack is an attempt by cybercriminals to dodge conventional email spam filters. They achieve this by dispersing their spam emails across multiple domains and IP addresses. By keeping the volume of their messages relatively low, they aim to confound volume-based spam filters, making it challenging for them to promptly detect and block these malicious emails. Consequently, a portion of these deceptive messages manages to infiltrate email inboxes before the filters can catch up. 

How to identify a phishing attack? 

Here are some ways to identify a phishing attack:
 

1.Consider every email as a possible phishing attempt 

It’s essential for users to carefully evaluate emails for authenticity. Depending solely on the organization spam filters may not offer the best defense against all attacks. Some organizations are adopting zero-trust network access (ZTNA) to enhance security and minimize exposure to internet-based applications. 

2.Verify the sender’s address 

To prevent phishing attacks, it’s crucial to regularly check and confirm the legitimacy of the “From” address in emails. This practice is important when receiving unexpected emails from banks, retailers, or government agencies, especially if they are sent to a work email address where such emails are uncommon. 

3.Review the email 

Open the email and carefully read its contents. Evaluate if any elements appear suspicious. Consider these questions before acting upon the contents: 

• Does the email convey a sense of urgency? 
• Is it offering something that seems too good to be true? 
• Do you have an account with the company reaching out? 

If anything appears unusual, avoid taking any further actions. 

4.Check grammar and spelling 

An email with spelling, grammar, and formatting errors can raise suspicions. Legitimate emails from banks, credit card companies, or payment services are typically free from such errors and employ correct, professional English. If the language and tone seem different, it’s likely a phishing attempt. 

5.Look for your name 

In addition to grammar and spelling, pay attention to how the email addresses your name and personal information. Reputable companies, particularly those you have accounts with or have done business with, usually address you personally. A generic greeting like “Dear Madam/Sir” can be a potential scam. 

6.Examine for unusual requests 

While reviewing the email, check for any unusual requests. Most phishing emails urge the recipient to respond to the email or click on a link within it. Anything that appears unusual or overly urgent can indicate a phishing attempt. 

7.Check links and attachments 

Scammers trick victims into clicking links or downloading attachments, often leading to malware infection. To verify a link’s authenticity, hover your mouse over it. If the link displays a long, unfamiliar URL in the lower left-hand corner of the screen, avoid clicking it. Similarly, be careful with attachments, even those with normal names like “Monthly Report” and familiar file extensions like PDF, as they could contain malware. Avoid double-clicking or downloading them. 

How to protect yourself from phishing? 

The following are some ways that organizations can undertake to protect their employees and systems from phishing attempts:
 

• Employ a spam filter:

  Implement spam filters in email programs (Outlook or G Suite) to detect known spammers. 

• Update security software regularly:

  Keep security software and patches up-to-date to detect and remove malware or viruses. Additionally, organizations should enforce password expiration and complexity policies. 

• Use Multi-Factor Authentication (MFA):

  Organizations should adopt multiple authentication steps to access systems. This becomes crucial if a scammer has already compromised an employee’s credentials. 

• Back-up data:

  Encrypt and regularly back up all data to mitigate risks in a breach. 

• Educate employees:
  

  Train employees to recognize suspicious links and attachments. Encourage them not to click on or download from untrusted sources. 

• Block unreliable websites:

  Employ web filters to prevent access to malicious websites if employees inadvertently click on malicious links. 

Phishing is the most common cybercrime that continues to evolve and adapt. By staying careful and adopting strong security practices, you can protect yourself from the widespread threat. 

If you have any queries or need any assistance, please feel free to get in touch with us at [email protected]