The social engineering threat to cybersecurity

Cybercrime headlines often focus on tech vulnerabilities and sophisticated threats. However, the reality is that 98% of cyberattacks rely on some form of social engineering, indicating the role of manipulating human behavior in cybercrimes. Understanding and defending against social engineering helps protect sensitive information in any organization.

Defining social engineering attacks

Social engineering attacks exploit human psychology to gain unauthorized access to networks and data. These attacks rely on:

• Psychological manipulation: Tricking individuals into performing actions that compromise security, such as downloading malware.
• Human weakness: Exploiting psychological tricks to obtain sensitive information willingly from the victim.
  
  

The four-stage social engineering attack lifecycle

1. Investigation: In this initial phase, attackers gather as much information as possible about their targets. This can include personal details, organizational structure, and security measures. They might use social media, company websites, or other public sources to build a comprehensive profile of their victim.
2. Hook: During this stage, attackers use the information gathered to craft convincing messages or scenarios. They may send phishing emails that appear to come from a trusted source, such as a company executive or a well-known service provider. The goal is to entice the victim to click on a malicious link or download an infected attachment.
3. Play: Once the attacker has gained access to the victim’s system, they execute their main objectives. This could involve stealing sensitive data, installing additional malware, or disrupting network operations. For instance, an attacker might use compromised credentials to access confidential business records or financial information.
4. Exit: In the final stage, attackers aim to avoid detection and cover their tracks. They may delete logs, use encrypted channels to communicate, or implement additional layers of obfuscation to ensure they can re-enter the network later if needed. Their objective is to leave the system without raising suspicion.
   
   

Common social engineering techniques

• Reverse social engineering: Attackers impersonate technical support or other trusted roles, convincing victims to provide login credentials or grant remote access. 
• Phishing/baiting: Attackers use deceptive emails or fake websites to lure victims into entering personal information. They may create emails that mimic those from legitimate organizations or institutions, tricking users into revealing sensitive data.
• Data mining: Attackers can craft personalized attacks that are more likely to succeed by harvesting information from social media, public records, or other online sources. This information helps them target specific individuals or departments within an organization.
• Fear and authority: Attackers may use scare tactics, such as fake security alerts, to create a sense of urgency. The pressure compels victims to act quickly, often bypassing standard security checks. 
• Tailgating: In physical security breaches, attackers might use stolen or guessed access credentials to enter secure areas. They might also follow authorized personnel into restricted zones, exploiting the trust or unawareness of those with access.
• Watering hole attacks: Attackers compromise reputable websites or online services frequented by their targets. They then inject malware or use phishing tactics to exploit visitors who trust these trusted sources.

Related: Tips to spot phishing emails disguised as healthcare communication

Staying vigilant

Since 98% of cyberattacks rely on social engineering, always verify the legitimacy of unexpected requests for sensitive information or actions, especially if they involve urgent requests or unusual communication channels. Regularly educate and train staff to recognize the signs of social engineering attacks and reinforce the importance of following security protocols.

FAQs

How can social engineering attacks be identified?

Suspicious or unexpected requests for sensitive information, unusual communication methods, and signs of urgency or pressure from unknown sources can identify social engineering attacks.

What is the difference between phishing and spear phishing? 

Phishing is a broad attack targeting many individuals with generic messages, while spear phishing is a targeted attack aimed at specific individuals or organizations with personalized, deceptive communications. 95% of successful network intrusions rely on spear phishing techniques and only half of employees can define this term correctly.

Read more: Spear phishing and HIPAA compliance

What should you do if you suspect a social engineering attack?

If you suspect a social engineering attack, report the incident to your IT or security team immediately, avoid engaging with the attacker, and follow established protocols for handling and mitigating potential breaches.