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Phishing

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Phishing is a sophisticated form of social engineering and cybercrime. It involves attackers using deceptive tactics to trick individuals into revealing sensitive data. These targets often include login credentials or financial details. Attackers may also use these methods to install malware on a device. This includes harmful software like viruses, worms, adware, or ransomware.

Phish
Phish

Phishing has become the most frequent type of cybercrime reported. As of 2020, the FBI's Internet Crime Complaint Center reported more phishing incidents than any other crime. This makes it a primary concern for digital security worldwide.

The mechanism of a phishing attack often relies on deception and urgency. An attacker might send a fraudulent message that looks like it is from a trusted source. This could be a bank, a government agency, or a streaming service. The message typically contains a link to a fake login page. When a victim enters their information, the attacker captures those credentials. Some modern attacks are even more transparent and mirror the target site perfectly. This allows the attacker to observe the victim as they navigate the site. They can even traverse security boundaries alongside the victim.

There are many distinct types of phishing attacks used by criminals. Bulk phishing involves sending mass messages to a wide audience without specific targeting. In contrast, spear phishing is a highly targeted attack. It uses personalized messaging and specific personal information to increase success rates. These often target executives or people in financial departments. For example, the Russian-run Threat Group-4127 once targeted over 1,800 Google accounts during a political campaign.

Computer virus scam
Computer virus scam

Other variations include vishing, which uses voice calls over VoIP technology. Smishing uses SMS text messages to deliver bait. Quishing is a newer method that uses malicious QR codes to redirect users to fake websites.

Advanced attackers now use Man-in-the-Middle (MitM) techniques to bypass security. In a MitM attack, an intermediary tool intercepts communication between a user and a real service. One such tool is Evilginx, which was originally made for ethical hacking. It acts like a middleman by passing information between the victim and the legitimate website. Because it does not store passwords directly, it is harder for security systems to detect. This method allows attackers to grab session tokens and cookies instantly. By doing this, they can bypass two-factor authentication (2FA) and access accounts. Microsoft Entra has noted a rise in these adversary-in-the-middle (AiTM) attacks recently.

Attackers also use link manipulation to hide their true destination. They may use misspelled URLs or subdomains to deceive the human eye. One method is called IDN spoofing or a homograph attack. This uses visually identical characters from different alphabets to create fake addresses. For instance, a Cyrillic "а" can replace a Latin "a" in a web address. A victim might think they are visiting a legitimate site when they are not. Even digital certificates like SSL may not protect a user. This is because phishers can purchase valid certificates for their fraudulent sites.

Phishing is a rapidly growing threat to both individuals and organizations. The frequency of attacks on businesses has climbed significantly over recent years. In 2017, phishing attacks affected 72% of businesses. This number rose to 86% in 2020. By 2023, the rate of attacks on businesses reached 94%.

Firefox 2.0.0.1 Phising Alert
Firefox 2.0.0.1 Phising Alert

This high percentage shows how common these scams have become in professional settings. The scale of the problem necessitates constant vigilance and updated security measures.

The history of phishing dates back to the early 1990s. The term was first recorded in 1995 within a cracking toolkit called AOHell. Some believe the term may have appeared earlier in the magazine 2600. In the early days, hackers used AOL to steal credit card information. They used tools like AOHell to impersonate AOL staff members. These attackers would send instant messages to users to request their passwords. Today, while the tools have changed, the core goal remains the same. Protecting against these threats requires a combination of legislation, education, and technical security.

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File:Example phishing SMS.svg
Example phishing SMS.svg
File:Computer virus scam.jpg
Computer virus scam.jpg
File:Phish.jpg
Phish.jpg
File:Firefox 2.0.0.1 Phising Alert.png
Firefox 2.0.0.1 Phising Alert.png
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