Last Tuesday at 04:01:26 UTC, the Grin mainnet went live. Grin is a cryptocurrency, but unlike most, it is not based on the Bitcoin protocol. Instead, Grin uses Mimblewimble, which was first proposed in 2016. Mimblewimble is an important development because it improves both privacy and scalability, two concerns that are normally at odds with…
Bitcoin and the Problem of Privacy
In the conventional financial system, privacy depends on keeping transactions known only by the parties involved, but Satoshi Nakamoto’s design for Bitcoin depends on public transactions to prove the validity of the blockchain. In the original Bitcoin white paper, Satoshi writes, The traditional banking model achieves a level of privacy by limiting access to information…
Containing Your Data
In an effort to improve my online security, I recently started testing Firefox Multi-Account Containers. The concept is fairly simple. The browser can open websites in discrete containers, and sites opened in one container cannot see information in another container. For example, a social-media site opened in one container cannot gain tracking information from a…
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