A data breach is an unauthorized access, acquisition, or disclosure of sensitive information stored in a computer system or network. Such breaches compromise the confidentiality, integrity, and availability of data, putting both individuals and organizations at risk. Data breaches can occur through various means, including hacking, malware attacks, insider threats, or even human error, such as sending sensitive information to the wrong recipient. The types of data often targeted include personal identification information, financial records, health records, and intellectual property. The consequences of a data breach can be severe, leading to financial loss, damage to reputation, legal repercussions, and erosion of consumer trust. Organizations are increasingly investing in cybersecurity measures, such as firewalls, encryption, and intrusion detection systems, to mitigate the risks of data breaches. Despite these efforts, the evolving sophistication of cyber-attacks makes data breaches an ongoing concern that requires vigilance and regular updates to security protocols.