HashKey Global Team

• Do not click any link from SMS before verifying the sender.
• Cross check with HashKey Global's website to confirm the URL

HashKey Global Team

• Be aware of calls from unknown numbers.
• Subscribe caller identification services to prevent spam/ junk call.
• HashKey will never ask you to share the password or 2 factor authentication digits on any channel.

HashKey Global Team

• Cross check with HashKey Global's website to confirm the URL.
• Do not click on URL from social media like X, facebook, Youtube other than HashKey official channel. Attackers can create fake websites or redirect you to it to obtain your personal information.
• Verify the Protocol - The URL from HashKey is started with Https:// with is secure protocol.

HashKey Global Team

• Check the email address of the sender. HashKey will only send information to Client via @hashkey.com email domain.
• Hover over the link and check whether the URL is matched with the URL you want to access. If the URL is not matched, it is a characteristic of phishing. Sometimes, attackers might use short links, i.e. blt.ly and it is easy to hide malicious links.
• Do not click on any attachment before verifying the sender.

HashKey Global Team

• Be careful of message related urgent reply - These messages usually claim that you must reply to the message or call back immediately to obtain a reward or prevent loss.
• Pay attention to infrequent senders/callers - It is a signing of phishing if you receive a message from an unknown person, especially if it is the first time receiving a message from the sender.
• Keep doubt on incorrect domains - It is a common characteristic that the message/email claims to be our company or very similar to our company, also called 'typosquatting ' For example:

• Do not click on any malicious link and attachments - HashKey will not ask clients to access any website other than HashKey Exchange - Global for information input. The link below is one of phishing websites sent by attackers via SMS/email.

HashKey Global Team

Frequently Asked Questions - User Guide

How to use your personal wallet to perform sign message

1. Software wallet - Electrum (BTC)

• Software Wallet - MyEtherWallet (ETH)
• Hardware wallet - Ledger Nano S (BTC)
• Hardware wallet - Ledger Nano S (ETH)
• Hardware wallet - Trezor (BTC/ETH)

1. 1. Unlock your MyEtherWallet, go to the wallet main page, click on [Message] in the left menu bar and choose [Sign Message].
    
   
    
   2. Once you have entered the sign message page, copy and paste the specified text from the HashKey Global address verification page into the "Message" area and click on the [Sign] button, the wallet will sign the input "message" with the private key corresponding to the address.
   
    
    
   3. After the signature is completed, the signature result will be shown in a pop-up. Then copy the content of "sig" (Note*) in "Signed Message" and paste it into the corresponding area of the HashKey Global address verification page for subsequent address verification process.
    
   * When copying, you only need to copy the text in quotation marks below the word "sig". Take the following screenshot as an example, you only need to copy the 1ef75291b26087f4a77e2710c69fe24356c1fdab4480ae341ff85a238172f060173d6cae7f2dbdad0677d0541eb7296b8e5223356e89566de5588640d42502251b
   section and pasted into the designated area of the HashKey Global address verification page
   
    

   Hardware wallet - Ledger Nano S (BTC coin)

   The Ledger Nano S is a hardware wallet. When using the Ledger Nano S to sign a message, you will need to use the software wallet to perform the sign message operation. The following steps are illustrated using the Electrum software wallet as an example.
    
   1. Install the Electrum wallet software. If you have already installed this wallet software, please proceed directly to step 2.
    

   2. Connect your Ledger Nano S device to your PC, enter your password, and unlock your wallet.
    
   3. Open the Electrum wallet software, follow the instruction to create a new wallet, choose [Standard Wallet] and click [Next]. If you have already installed the wallet software, please enter the wallet software and choose [File] → [New/Recover] to enter the installation process as below.
    
   
    

   4.  
   
   choose [Use a hardware device] as the Keystore and click [Next].
    
    
   5. Once the Ledger Nano S hardware wallet device has been detected by the software, click [Next].
    
   
    
   6. Depending on the type of BTC address used to generate the address on the Ledger device (the table below provides a brief comparison and description of the 3 types of BTC addresses), choose [script type and derivation path], choose the "native segwit (p2wpkh)" as the address type.

   Address format	Address form	Brief description	Transaction Fee
   Legacy (P2PKH)	"Beginning with 1"	Legacy address, generated using P2PKH (Pay-to-Pubkey Hash)	High
   P2SH-SegWit(P2SH)	"Beginning of 3"	Possible multi-signature address, segregated witness compatible address, generated using P2SH (Pay-to-Script-Hash) script, which can send BTC to addresses starting with 1 and bc1, widely supported	Medium
   Native-SegWit	"Beginning with bc1"	Native-SegWit address is generated by P2WPKH or P2WSH, with a different style and smaller QR code than 1 and 3 addresses, and backward compatible with addresses starting with 1 or 3 to transfer to each other	Low

    
    
   
    

   7. Check [Encrypt wallet file] and click [Next].
   
    
   8. Go to the Electrum Personal Wallet main page, click on [Tools] and choose [Signature/Verify Message].
    
   
    
   9.  
   
   Once you have entered the sign page, copy and paste the specified text from the HashKey Global address verification page into the "Message" field and enter the "Address" information. Then click the [Sign] button.
    
    
   10. Sign the entered "message" with the private key corresponding to the address by operating the navigation button of the Ledger Nano S hardware wallet device.
   
   
    
    
   11. Once the message was signed, the signature result will be displayed in the "Signature" section of the Electrum wallet.
    
   
    
   12. Copy and paste the signature result into the designated area on the HashKey Global address verification page for subsequent address verification operations.
    

   Hardware wallet - Ledger Nano S (ETH)

   The Ledger Nano S is a hardware wallet. When using the Ledger Nano S for sign message, you need to use the wallet software to perform sign message. The following procedure is illustrated using the MyEtherWallet (MEW) software wallet as an example.
    
   1. Connect your Ledger Nano S hardware wallet device to your PC via USB, enter your password and unlock your wallet.
    

   2.  
   
   Open the MyEtherWallet (MEW) website and click on [Wallet Actions] → [Sign Message].
    
    

   3. Once you have entered the Sign Message page, click on Hardware Wallets and choose Ledger.
    
   
    

   4.  
   
   choose the wallet derivation path "Ethereum-Ledger Live" and click on [Unlock wallet].
    
    
   5. After unlocking the wallet, choose the address you need to sign in the address list, tick to agree to the terms, and click on [Access My Wallet].
   
    
    
   6. Once you have entered the main MyEtherWallet wallet interface, click on [Message] in the left-hand menu bar and choose [Sign Message].
   
    
   7. Once you have entered the signature page, copy and paste the specified text from the HashKey Global address verification page into the "Message" section and click the [Sign] button.
    
   
    
   8. By operating the navigation button on the Ledger Nano S hardware wallet device, the private key corresponding to the address is used to sign the input "message".
    
   9. Once the signature is complete, the signature result will pop up. Copy the contents of the "sig" section (note*) of the "Signed Message" and paste it into the designated area in the HashKey Global address verification page for subsequent address verification operations.
    
   * When copying, you only need to choose the text inside the quotation marks below the word "sig". Take the following screenshot as an example, you only need to put
   1ef75291b26087f4a77e2710c69fe24356c1fdab4480ae341ff85a238172f060173d6cae7f2dbdad0677d0541eb7296b8e5223356e89566de5588640d42502251b
   section and paste it into the designated area of the HashKey Global address verification page.
    
    
    
   Hardware wallet-Trezor (BTC/ETH)
    
   1. Trezor is a hardware wallet, you can use your Trezor personal wallet to sign message with the specified text in the HashKey Global address verification page by referring to the following link.
   https://trezor.io/learn/a/sign-verify
   2. Copy and paste the signature result into the designated area on the HashKey Global address verification page and perform subsequent address verification process.