9, Having successfully aggregated Schnorr signatures, I forgot to discuss my thoughts (part 5). I will summarize them.

First, the countermeasure (conclusion) is written in the title: store funds in a new address that has never been used in a transaction. This is crucial.

The reason is simple: for a new address that has never been used in a transaction, hackers will give up immediately. They have no choice but to give up because there are no clues at all.

Why are there no clues? It is because the mechanisms, such as those classes listed up to part 6 of my thoughts, are systems for writing transaction information to the blockchain, and from there, you can think about it. In other words, if you use an address even once in a transaction, the transaction information linked to that address will be written to and shared on the blockchain. Therefore, even if it’s a cold wallet, you can trace it to the address stored cold from the information written and shared on the blockchain.

By the way, when used casually, it is surprisingly rare for addresses to be operated as new addresses. This is because when you register an address with an exchange to receive funds, that address has been used at least once by someone. Using it more than once means that the transaction information linked to that address has been written to the blockchain multiple times.

However, frequently changing such recipient addresses is not practical from a management standpoint. Therefore, it is necessary to send the received funds to a new address yourself afterward. This can be easily achieved with a wallet, and it is a legitimate transaction.

You can generate a new address and send the entire amount there, for example. The wallet will create and execute a transaction under the “payment to self” category.

How is this handled? The information linked to the address is written to the blockchain on the sender’s side (i.e., the address that has been used multiple times to receive funds), and the new address destination is minimal information saying, “sent here.” Therefore, as long as you keep the coins in that new address, there are no clues, creating an ideal situation. This is especially crucial for long-term storage.

It is often emphasized that using a new address does not create privacy issues. However, more important than privacy concerns is the ability to place coins in an ideal situation where there are no clues at all.