Which of these two is more creepy?

Medicalchain
Medicalchain

This company proposes to store highly sensitive information on the blockchain - a technology that has no way to delete data on it, and works by spreading your data across thousands of computers.

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VS
Navistone
Navistone

A company that does "data onboarding": coupling online website visitors to their real life addresses. For example: people who visited webpages about foot diseases were surprised to get real mail with advertisements for treatment.

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