What are the most common types of cyber attacks today?
When interviewing for a Security Architect position, especially at a FAANG company, it's important to understand the most common types of cyber attacks today. Here’s a concise and comprehensive overview:
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Phishing Attacks: These attacks use deceptive emails, messages, or websites to trick individuals into revealing sensitive information such as usernames, passwords, or credit card numbers.
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Malware: Malware is malicious software designed to damage, disrupt, or gain unauthorized access to computer systems. Common types include viruses, worms, trojans, and ransomware.
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Denial of Service (DoS) and Distributed Denial of Service (DDoS) Attacks: These attacks aim to make a service unavailable by overwhelming it with traffic, often using a network of compromised devices.
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SQL Injection: This attack involves inserting malicious SQL code into a web application’s input fields to manipulate the database, allowing attackers to view or modify data.
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Man-in-the-Middle (MitM) Attacks: These occur when an attacker secretly intercepts and relays messages between two parties who believe they are directly communicating with each other.
Key Talking Points:
- Phishing: Social engineering attack to steal sensitive information.
- Malware: Malicious software for compromising systems.
- DoS/DDoS: Overloads services to cause disruption.
- SQL Injection: Exploits vulnerabilities to access databases.
- MitM: Intercepts communication between parties.
NOTES:
Reference Table:
| Attack Type | Method of Attack | Primary Goal |
|---|---|---|
| Phishing | Deceptive emails or websites | Steal sensitive information |
| Malware | Malicious software | Damage or access computer systems |
| DoS/DDoS | Overwhelm network or service | Disrupt service availability |
| SQL Injection | Insert malicious code in SQL queries | Access or manipulate database data |
| Man-in-the-Middle (MitM) | Intercept communication between two parties | Eavesdrop or alter communication |
- Malware: Like a termite in your house, it's hard to detect until damage is done.
- DoS/DDoS: Picture a crowd of people blocking the entrance to a store, preventing legitimate customers from entering.
- SQL Injection: Similar to finding a secret backdoor to a building to access its contents.
- MitM: Think of someone tapping a phone line to listen to conversations.
Follow-Up Questions and Answers:
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Q: How can you protect against phishing attacks?
- Answer: Implement email filtering, educate users about recognizing phishing attempts, and use multi-factor authentication.
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Q: What are some effective methods to defend against malware?
- Answer: Use antivirus software, keep systems updated, and apply the principle of least privilege.
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Q: How do you mitigate DDoS attacks?
- Answer: Employ rate limiting, use DDoS protection services, and design systems to absorb and manage large traffic spikes.
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Q: What practices can prevent SQL injection vulnerabilities?
- Answer: Use prepared statements and parameterized queries, and validate user inputs.
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Q: How can Man-in-the-Middle attacks be prevented?
- Answer: Use encryption protocols like TLS/SSL, employ VPNs, and ensure secure key exchange mechanisms.
By understanding these common cyber threats and their defenses, you'll be well-prepared to discuss security strategies in your interview.