What is a Data Breach?
Data Breach is the process by which sensitive information is exposed to unauthorized parties. This can occur through cyber attack, social engineering, or stolen credentials. Once exposed, data can be used for financial gain or for malicious activity against the organization or its customers. Data breaches can have devastating effects on a company’s reputation, revenue, and brand value.
A successful attack begins with reconnaissance, where attackers look for open-source intelligence, misconfigured cloud infrastructure, weak login credentials, or unpatched software vulnerabilities. Then, they launch attacks to exploit those weaknesses, such as SQL injection or phishing campaigns. Attackers can also leverage compromised data from previous breaches.
Even a “data leak” can cause significant damage, as was the case with the 2019 attack against First American Financial. This incident impacted more than 885 million private documents, including mortgage records, digitized copies of tax returns and other legal documents, photos of driver’s licenses and other identification, bank account statements, credit card receipts, and more. This breach resulted from a website design error (an insecure direct object reference, or IDOR), and allowed access without any authentication or verification procedures.
Regulatory fines and penalties, legal costs, and operational disruptions add up quickly. In addition, lost productivity and revenue from staff having to spend time on recovery efforts can have a long-term impact. Finally, reputational damage can lead to decreased sales and customer churn, and make it harder to attract new business. To mitigate these risks, organizations need to create a clear roadmap for response and recovery, including post-incident review to learn from the experience and improve security measures.