Causes of Data Breaches and How to Prevent Them
Read Time 4 mins | Written by: Nur Rachmi Latifa

The Importance of Data Protection in the Digital Era
As technology advances, personal data and other critical information are often stored and managed digitally, increasing the risk of data breaches. Data breaches not only impact individual privacy but can also damage an organization’s reputation and result in significant financial losses.
In this increasingly interconnected world, understanding the causes of data breaches and learning how to handle leaked personal data is crucial. This article will explore the key factors contributing to data breaches and the solutions that can be implemented to prevent them.
What Is a Data Breach?
A data breach occurs when sensitive, confidential, or personal information is exposed to unauthorized parties. It can involve various types of data, ranging from personal details such as names and identification numbers to corporate data, including financial information or business strategies. Data breaches can result from multiple factors, including cyberattacks or human error.
High-profile cases, such as the Facebook–Cambridge Analytica incident or data theft by hacker groups targeting major companies, highlight the significant risks that data breaches pose to both individuals and organizations.
Causes of Data Breaches
Several common factors contribute to data breaches, including:
a. Cyber Attacks
One of the most common causes of data breaches is cyberattacks. These are deliberate attempts by hackers to access or steal sensitive data. Types of cyberattacks that often lead to data breaches include:
- Phishing: Manipulative techniques to obtain sensitive information by pretending to be a trusted entity.
- Malware: Malicious software designed to steal or damage data.
- Ransomware: A type of malware that locks a victim’s data and demands a ransom for restoring access.
b. Security System Weaknesses
Weaknesses in security systems are a major cause of data breaches. These can include outdated systems, weak passwords, or flaws in the software being used. For example, software that is rarely updated becomes an easy target for hackers exploiting its weaknesses.
c. Human Error
Human error is a frequent and often inadvertent cause of data breaches. Examples of such errors include:
- Misaddressed Emails: Sending sensitive data to the wrong recipient.
- Incorrect Data Uploads: Uploading files without proper protection.
- Configuration Errors: Misconfigured security settings in cloud applications.
d. Insider Threats
Not all threats come from external sources. Insider threats originate from employees or other individuals with access to data who have malicious intent. These may involve disgruntled employees or third parties misusing their access to company systems.
e. Lost or Stolen Devices
The loss or theft of physical devices such as laptops or smartphones containing critical data is another significant factor. Without encryption or additional security measures, the data stored on these devices can be easily accessed by unauthorized individuals.
f. Lack of Regulatory Compliance
Failing to comply with data protection regulations, such as the Personal Data Protection Law (UU PDP), increases the risk of data breaches. Non-compliance often indicates that the company has not implemented adequate security measures to protect sensitive data.
What Are the Most Common Causes of Data Breaches?
Based on the factors mentioned above, the most common causes of data breaches are cyberattacks and human error. Cyberattacks like phishing and ransomware exploit security vulnerabilities to gain access to sensitive data. Meanwhile, human errors, such as sending emails to the wrong recipient or mishandling data carelessly, are also frequent contributors.
The combination of these two factors makes data breaches a persistent risk unless mitigated by strong security strategies.
How to Address and Prevent Data Breaches
Here are some effective ways to combat and prevent data breaches:
1. Implement Stronger Cybersecurity Measures
2. System Updates and Security Patches
3. Cybersecurity Awareness Training for Employees
4. Use Multi-Factor Authentication (MFA)
5. Enforce Strict Data Access Management
6. Establish Security Procedures for Physical Devices
7. Comply with Data Protection Standards and Regulations
Steps to Take If Personal Data Has Been Breached
If a data breach has occurred, here are steps that can be taken to minimize its impact:
- Change Passwords Immediately: If the breach involves credentials, immediately change passwords and enable multi-factor authentication (MFA).
- Notify Authorities: Companies should contact relevant authorities and report the breach.
- Communicate with Affected Customers or Employees: Inform those affected about the breach and outline the steps being taken to address the issue.
- Improve Security Systems: Conduct an audit and evaluate security systems post-breach to prevent similar incidents in the future.
Conclusion
Data breaches are a serious threat in the digital era, capable of causing significant harm to both individuals and organizations. The most common causes of data breaches include cyberattacks, human error, and security system vulnerabilities. However, with appropriate preventive measures such as enhancing cybersecurity, training employees, and implementing access controls, data breach risks can be minimized.
Ultimately, maintaining data security is a shared responsibility that requires attention and action from all levels of an organization. By understanding the causes of data breaches and how to address them, individuals and companies can better protect their data in today’s challenging digital landscape.