Computer and Mobile Based Social Engineering

Computer-Based Social Engineering:

Hoax Letters:  These are fake emails sending warnings about malware, virus and worms causing harm to the computers.

Chain letters: Asking people to forward emails or messages for money.

Spam Messages: These are unwanted irrelevant emails trying to gather information about users.

Instant Chat messengers: Gathering personal information from a single user by chatting with them.

Phishing: Creating a cloned fake website trying to gather sensitive information about users. It can be done by sending a fake email as though coming from an original website and then trying to collect confidential information.

Phishing can also be executed through fake mobile applications.

Mobile based Attacks:

SMS based: Sending a fake SMS saying that the user has won a bounty, urging him/her to register with confidential information or try and collect other important details.

Through Malicious Apps: Applications downloaded from third party sources may be malicious; they can access authentication information and other sensitive details.

Through Email and messengers: Attackers can send spam emails or malicious links through messenger applications. When the victim clicks on it- he may be redirected to a malicious site, or a malware could be downloaded or it may lead to some other malicious activity.

Social engineering on corporate side:

Find an insider: It can be a disgruntled employee who may be the target.

Develop relationship: Develop a friendship with this person and maintain this relationship to the point he trusts you.

Exploit the relationship: Extract the information about the company and other sensitive information exploiting the trust that he placed in you.

Insider Attacks:

An insider attack is very difficult to detect. If a disgruntled employee wants to take revenge; he can install malicious applications to steal/modify information, causing significant damage to the organization or he can be bribed by the competitor to reveal or steal company secrets, intellectual property information, etc.

Countermeasures:

• Educating the employees about the security policies and frameworks, best practices, etc.
• Creating awareness among the users and employees about social engineering attacks.
• Enforcing strict perimeter policy, authentication mechanisms.
• Coming up with effective security policies.
• Enforcing proper access privileges.
• Classifying information and protecting access to them.
• Using Updated antivirus, anti-phishing tools. 
• Monitoring and auditing.

Read : Denial of Service attacks and its Types