As we can see from the data presented by PrivacyRights.org, the number of data breaches, and those affected, have decreased significantly since 2005. Researchers can utilize this public information to investigate data breaches by carefully analyzing the information that has been disclosed or leaked. This can include studying breached data sets, examining hacker forums, dark web marketplaces (where the stolen data is sold), and scrutinizing public statements or press releases from the affected organizations. By piecing together these fragments of information, researchers can reconstruct the timeline and methods used in the breach, identify potential vulnerabilities, and understand the scope and impact of the breach. This analytical approach is vital for not only shedding light on cybersecurity threats but also for helping organizations and the cybersecurity community build their defenses and reduce future risks.