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Compliance Essentials: Why Hashed Data Isn’t Anonymous
Introduction Businesses are increasingly focusing on protecting user privacy while leveraging data for digital advertising, marketing, and customer insights. One common method to handle this balance is through the process of hashing personal information. However, it is crucial to handle customer data responsibly amidst a landscape of data breaches and regulatory scrutiny. Many organizations claim that by hashing, they render the data anonymous, reducing risks tied to personal privacy. However, the belief that hashed data is fully anonymized is misleading and can have serious legal and ethical implications. Additionally, methods to anonymize data, including hashing, face challenges and limitations that do not fully safeguard against reidentification risks. This article explores why hashed data doesn’t truly anonymize personal data, addressing common privacy misconceptions. Understanding Hashing: A Mathematical Overview At its core, hashing involves taking an input (like an email address, phone number, or other personal identifier) and processing it through a
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