An Ethereum Mixer (or Tumbler) is a service designed to significantly enhance privacy and security. It operates by mixing a user's existing and new ETH addresses with those of other users in a blending pool, effectively severing the connection between the original coins and their owner. This process makes it exceedingly challenging to trace the source and destination of the funds, thereby ensuring anonymity. By utilizing a reputable Ethereum Mixer, you can mitigate these risks and safeguard your financial privacy with confidence.