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Locking the Vault: The Risks of Memory Data Residue

Most of today’s applications handle sensitive data like passwords, cryptographic keys or any other confidential information. Managing these secrets is a fundamental responsibility of any application. However, what happens to them when they’re no longer needed? Their disposal becomes a non-negotiable aspect of data security as leaving traces can open a door for potential attackers.

In this post we will delve into the technical aspects of securely erasing sensitive data from memory, outlining why it’s essential and how to do it correctly. We’ll explore the often-underestimated risks associated with leaving remnants of such information in volatile memory and provide practical methods to ensure they are eradicated completely.