[Real Investment Record of Approx. 2 Million Yen] Are Cryptocurrency Wallets Safe? 5 Things to Be Careful About with MetaMask

November 8, 2026
Noah
Currencies
0

Hello, this is Kobayashi😊

Starting October 12th, I began compound interest investment of RAD using approximately 2 million yen.

Today is the 27th day of the investment. First, I will introduce the latest investment results.

📊 RAD Investment Record for November 8th

Finally, the investment balance has exceeded 14,000 USDT!🎉

Starting from 13,000 USDT, the current investment balance is 14,055.67 USDT.

・Initial investment amount: 13,000.00 USDT (approx. 2 million yen)

・Current investment balance: 14,055.67 USDT (approx. 2,165,000 yen)

・Balance increase from initial investment: +1,055.67 USDT (approx. 163,000 yen)

・Cumulative profit in the management dashboard: +1,197.64 USDT (approx. 184,000 yen)

・Confirmed/Pending distribution (estimated): +49.19 USDT

※Japanese yen values are reference figures calculated at 1 dollar = 154 yen.

It has been about 4 weeks since the start of the investment. I was able to exceed 14,000 USDT, which was one of the milestones.

Since I am investing with compound interest, I am recording how the balance increases little by little while reinvesting the profits.

Note that there is a difference between the cumulative profit in the management dashboard and the balance increase from the initial investment. This time, I will record these figures separately.

I would like to continue tracking the changes in these numbers from here on out😊

The theme for this time is “Safety Measures for MetaMask”

In previous articles, I have introduced USDT, arbitrage trading, and the mechanism of compound interest investment.

This time, I will talk about “cryptocurrency wallets,” which are also relevant when using RAD.

The one I am using is MetaMask.

It is a wallet for managing cryptocurrency, familiar for its fox icon.

Although it is a convenient tool, its mechanism is significantly different from a bank account.

Therefore, this time, I have summarized 5 points to keep in mind when using MetaMask.

What is MetaMask in the first place?

MetaMask is a wallet for using cryptocurrency and services on the blockchain.

When you hear the word wallet, you imagine a purse for holding money, right?

However, in reality, the cryptocurrency itself is not stored inside your smartphone or computer.

Cryptocurrency is managed on the blockchain, and MetaMask is a mechanism for handling the private keys used to operate those assets.

In other words, it is an essential tool for accessing assets on the blockchain.

【Image 1: Kobayashi-san’s image from before, ‘MetaMask can also be used as an app’】

1. Never share your Secret Recovery Phrase

When using MetaMask, the ‘Secret Recovery Phrase’ is particularly important.

This is extremely vital information for restoring your wallet.

Even if your smartphone breaks or you need to reinstall the app, you can restore your wallet if you have the correct phrase.

However, conversely, if this information is known to others, there is a risk that your assets will be stolen.

Even if someone claims to be a MetaMask support representative, you must never tell them.

I also want to be especially careful about managing such important information.

2. Beware of fake sites and fake apps

In the world of cryptocurrency, fake sites that look exactly like the real thing are sometimes created.

For example, pages that mimic the official MetaMask website or suspicious sites that ask you to connect your wallet.

If you casually open links from search results or social media, you may be led to a fake site.

As a countermeasure, check the URL of the official website.

The official MetaMask website is

https://metamask.io/

Bookmarking the official site once you have verified it is also a good method.

3. Wallet connection and transaction approval are different things

With MetaMask, you can connect your wallet to various Web3 services.

What you need to remember here is the difference between “connection” and “approval”.

Connecting a wallet and authorizing the movement or use of cryptocurrency are not the same thing.

Depending on the service, you may need to perform an operation called “Approve” to authorize the use of tokens.

Depending on the content of this approval, the service’s smart contract may be able to move a certain amount of tokens.

Therefore, when an approval screen appears, it is important to check what you are authorizing.

In particular, you should be careful not to approve an unnecessarily large amount.

4. Check the destination address and network

When sending cryptocurrency, it is important not to make a mistake with the destination address.

Unlike bank transfers, transactions confirmed on the blockchain cannot be canceled in principle.

Also, USDT is used on multiple blockchains.

Even if they have the same name, USDT, if the network you are sending to is different, you may not be able to receive it properly.

Before sending,

・Is the destination address correct?

・Are the networks of the sender and receiver compatible?

・Are the currency and amount being sent correct?

You should make sure to check these three things.

If it is your first time sending to a destination, there is also the method of testing with a small amount.

5. Protect the security of your wallet yourself

MetaMask is a wallet used by many people, but just using it does not guarantee the security of your assets.

There are things that users themselves must be careful about, such as managing smartphones and computers, checking connection destinations, and storing secret information.

For example, do not easily open links sent by unknown parties.

Do not approve content displayed in your wallet without checking it first.

These basic habits lead to protecting your own assets.

Since we also use MetaMask at RAD, I believe that understanding how wallets work is knowledge that will continue to be useful.