Data-damaged products (smart/IoT): is formatting enough?

Understanding the risks of damaged smart/IoT devices

Smart and IoT devices store a lot of personal and sensitive data. When these products are damaged, simple formatting may not be enough to completely erase the information present.

Why formatting does not guarantee data security?

Formatting a device usually erases the file allocation table, but the data can remain in memory until it is overwritten. In smart/IoT devices, the information may be distributed across multiple memories, making it difficult to completely remove it using the standard format alone.

Multilayer storage and memory types

Smart products often use different types of memory: NAND flash, EEPROM, SD cards, among others. Each one has its own storage and erasure mechanisms, which require specific processes to ensure the total elimination of data.

The dangers of reusing or discarding devices without proper sanitization

Discarding or passing on smart/IoT devices without a thorough cleaning can result in the exposure of personal, business or sensitive data. Hackers or malicious people can recover information even after simple formatting.

Best practices to ensure secure data removal

• Use of specialized software: tools that perform multiple data overwriting.
• Secure factory reset: performed correctly, combined with device security sensors.
• Physical destruction: in cases where the device is unusable, destruction of the physical memory may be necessary.
• Specialized technical advice: trained professionals can guarantee effective and safe sanitization.

Conclusion

For damaged smart and IoT devices, conventional formatting is insufficient to guarantee the security of stored data. It is essential to adopt secure processes that can ensure the complete removal of information before the equipment is disposed of or reused.