How To Avoid SIM Swap Attacks

As recently as February 22, 2020 at least $45 million worth of cryptocurrency was stolen by an attacker who used one of the oldest tricks in the book: SIM Swapping.

SIM swapping is a simple “human engineering” kind of hack that usually involves convincing the victim’s phone company to move their existing phone number to a phone and SIM that the attacker controls. This is done to bypass 2FA systems where a text message or phone call is used as the last line of defense for account recovery options such as a password reset.

In this guide we will review the simplest approach to avoid having your crypto stolen by an attacker utilizing the same approach


How To Avoid SIM Swap Attacks


Step 1)

Instead of tying SMS to your account recovery, utilize cryptographic 2FA provided by apps such as Authy, Google Authenticator.


Step 2)

That’s it!


The Launch of Byzantine

Today we’re proud to announce we’ve slated a LAUNCH DATE for Byzantine, along with token swap details. By using Byzantine you’ll be able to be part of our payments network, which you can read more about on the dedicated Byzantine page at


Acquiring Byz tokens

In order to acquire Byz tokens at a 5x ratio (5 Byz token for every 1 Blue you swap) you’ll need to be one of the first to perform the swap. If you don’t make it in to the first 1 million coin swaps, that’s OKAY, you can participate in round two at a 4x ratio, which will be limited to 2 million Blue tokens. The full chart is here: which leaves 42M BYZ minted, the same as the total supply of Blue:

5:1 Ratio
Byzantine Limit: 5 million
Blue Limit: 1 million

4:1 Ratio
Byzantine Limit: 8 million
Blue Limit: 2 million

3:1 Ratio
Byzantine Limit: 9 million
Blue Limit: 3 million

2:1 Ratio
Byzantine Limit: 20 million
Blue Limit: 10 million

1:1 Ratio
No limits needed!


How to Claim:

On August 20th, 2019, an update will be posted across Twitter, Telegram, and via email for everyone to claim their coins. After this it will be a first-come-first-server system where you swap your Blue tokens by sending them to the swap smart contract (the contract address and code will be available at the same time). If you want to be notified right away you can sign up for the notification list here: Email Me!

Exchange Donations


After extensive talks with several exchanges we’ve got an opportunity to improve our visibility through some top 50 exchanges. We aren’t sure who we will go with yet but we’re going to open up donations for those who want to see BLUE on more exchanges. Regardless of the exchange selection, we’ll need a few more BTC to pay for listing. When contributing be sure to PM an Admin on Telegram, or email [email protected] with a tx id and a name so we can add you to the website as a contributor (plus a little secret surprise later this year that will show up in your Blue Wallet)
If you contribute via BTC, be sure to include your Blue wallet address as well!

Major criteria for our new exchange selection process:
1) Must be in the top 50 by adjusted volume
2) Must be available in China, S Korea, Japan
3) Must be above board with a clean record free of hacks, wash trading, and scam coin listings
4) Must be willing to consider using our SDK within the exchange

Contribute BTC: 39jtTnJtStNL63PQyquX7HiGukJVmMLcbu
Contribute ETH: 0xdfb3355981ca3c7ba6ba790b26f02c3737727de7

Interested in seeing the list of supporters so far? You can see them here.