As of 2024, some of the most common data security threats include:

1. **Phishing Attacks**: Cybercriminals use deceptive emails or websites to trick individuals into revealing personal information or login credentials.

2. **Ransomware**: Malicious software that encrypts data and demands a ransom for its release.

3. **Insider Threats**: Employees or contractors who intentionally or unintentionally compromise data security.

4. **Malware**: Various forms of malicious software, including viruses, worms, and spyware, designed to damage, disrupt, or gain unauthorized access to computer systems.

5. **Denial of Service (DoS) and Distributed Denial of Service (DDoS) Attacks**: Overloading a system with traffic to make it unavailable to users.

6. **Man-in-the-Middle (MitM) Attacks**: Intercepting and altering communications between two parties without their knowledge.

7. **SQL Injection**: Inserting malicious SQL queries into input fields to manipulate databases.

8. **Zero-Day Exploits**: Taking advantage of previously unknown vulnerabilities in software or hardware before patches are available.

9. **Credential Stuffing**: Using stolen usernames and passwords from one service to attempt to gain access to other services.

10. **Advanced Persistent Threats (APTs)**: Prolonged and targeted cyber attacks where an intruder gains access to a network and remains undetected for an extended period.

11. **Supply Chain Attacks**: Compromising a system through vulnerabilities in third-party software or hardware.

12. **IoT Vulnerabilities**: Exploiting weaknesses in Internet of Things devices to gain unauthorized access to networks.

These threats evolve rapidly, requiring constant vigilance and updated security measures to mitigate risks effectively.