Cryptocurrencies are blockchain
based. Blockchains are ongoing and public ledgers of
events which record
every single transaction that occurs over the
cryptocurrency network.
The effect of this level of
public information sharing is that any time you
engage in a transaction
(i.e. when you send or receive Bitcoin), the other
party knows your
wallet address and is therefore able to view all of
your financial
history, including the balance in your wallet. The
other party will also
be able to monitor your future transactions and can
share your wallet
address with others, including cybercriminals.
In order to avoid this and keep
your personal anonymity and the anonymity of your
cryptocurrency funds,
you need to use Bitcoin tumbler to break the link
between your old and
new wallet address.