Digital Wallet Security

For those of us who have used Google Pay or Apple Pay, have you ever wondered how your Credit/Debit cards are actually "stored" in a digital wallet? Digital wallets allow cardholders to securely store their payment information to make payments. If you take a Credit Card from Bank A, then Bank A is the Issuer. You add the Credit card to a digital wallet, and now you can perform payment transactions from your digital wallet. Your Card number, aka. Primary Account Number (PAN) is something you should protect at all costs. In many scenarios, your PAN (Card Number) and Card Expiry Date are all that’s needed to initiate a payment request. Storing your card’s PAN in the digital wallet application is risky. If your PAN is exposed to an adversary, deactivating the card and destroying the PAN at the Issuer Bank’s Side is a costly process. So, how is a card saved in the digital wallet? Instead of the actual PAN, your digital wallet gets a TOKEN to store. The TOKEN is made in such a way that it appears as an actual PAN to any Acquiring Bank/Gateway/Switch/Payment Network, and they can treat it like an actual Card Number (PAN). As a digital wallet provider, - You can deactivate the card in the wallet easily by deactivating the TOKEN. - You can limit how many transactions a TOKEN can do. Even if the token is compromised, the damage is short-lived. - You can bind a TOKEN to a single device, so stealing and using it from another device is not possible. - You can provide a token to a trusted merchant and limit the payment amount. So, only a specific merchant can make a payment request on the user's behalf. Henceforth, a digital wallet provider has better control over the digitally created short-lived instance of PAN, which is the TOKEN.

As more companies and governments start adopting verifiable digital ID credentials, one big question keeps coming up: How do we make sure that only the right person can use them? This was one of the key topics we tackled in our panel with Paul Kenny from Daon and Pedro Torres from Youverse. Both agreed—if credentials aren’t bound to the biometrics of the person they were issued to, they’re vulnerable. Today, verifiable credentials typically live in a digital wallet on a user’s phone. But what happens if someone gets hold of that wallet? Whether through social engineering, phone theft, or malware, nothing is stopping them from presenting those credentials and impersonating the rightful owner. > That’s where biometric-bound credentials come in. They ensure that even if someone gains access to a wallet, they can’t use the credential unless their biometrics match the biometric proof linked to it. Pedro compared it to a passport: it’s not just the document that matters, but also the photo that ties it to a real person. The need for biometric-bound credentials is clear, but where can they have the strongest impact? Here are 3 areas: 1. Age Verification With new regulations - like Australia’s upcoming rules blocking under-16s from social media - companies need a way to verify age without collecting excessive data. A biometric-bound credential would allow its owner to prove they are over 18 without sharing other personal details like their name or ID number. More importantly, it ensures that proof can’t be passed to a friend or misused by someone else. 2. Government-Issued IDs We’re seeing a major push toward government-backed digital IDs like mobile driver’s licenses (mDLs) and the upcoming EU Digital Identity Wallet (EUDI Wallet). Just like physical IDs have photos for a reason, these digital versions need to ensure only the rightful holder can use them. 3. Financial Services & Banking Financial transactions require stronger identity verification than something like age checks. Opening a bank account, applying for a loan, or signing a contract are all high-risk actions that demand credentials that can’t be faked or passed around. Biometric-bound credentials provide an added layer of security, ensuring that the person presenting the credential is the same person it was issued to. They also reduce the need for repeated ID verification checks, enabling a more streamlined experience for users and institutions. — If your company is exploring issuing verifiable credentials, I’m happy to chat about how biometric binding can fit into your strategy.

𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗟𝗮𝘆𝗲𝗿𝘀 𝗶𝗻 𝗕𝗹𝗶𝗻𝗱𝗣𝗮𝘆'𝘀 𝗦𝘁𝗮𝗯𝗹𝗲𝗰𝗼𝗶𝗻𝘀 𝘁𝗼 𝗟𝗼𝗰𝗮𝗹 𝗖𝘂𝗿𝗿𝗲𝗻𝗰𝘆 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗣𝗿𝗼𝗰𝗲𝘀𝘀 This breakdown outlines the robust security measures implemented by BlindPay to ensure safe and compliant transactions when converting USDC to local currencies. 🛡️ Blockchain Wallet Screening BlindPay supports integration with various blockchain wallet infrastructures, including: - Multi-Party Computation (MPC) wallets - Externally Owned Accounts (EOA) - Account Abstraction (AA) wallets For every wallet interacting with BlindPay, our trusted partner CUBE3 AI conducts thorough verification: - Checks for government sanctions - Screens for potential fraud associations This proactive approach helps maintain the integrity of our platform and protects our users from inadvertently engaging with high-risk wallets. 🪪 KYC/B and Transaction Screening As a provider of regulatory and compliance infrastructure, BlindPay prioritizes a robust verification process: 1. All users must complete our automated compliance procedure, powered by our partner AiPrise. 2. The level of Due Diligence determines user transaction limits: > Higher Due Diligence = Higher limits > Lower Due Diligence = Lower limits This tiered approach ensures appropriate risk management while offering flexibility to our diverse user base. 👀 Transaction Monitoring Our system employs continuous vigilance during the off-ramping process between blockchain wallets and bank accounts: - Automatic detection of suspicious behavior - Immediate notification triggering for flagged activities - Initiation of an in-depth due diligence process when necessary If our investigation confirms suspicious activity, we take two critical steps: - File Suspicious Activity Reports (SARs) with relevant authorities - Block future payments from the flagged user This multi-layered security approach demonstrates BlindPay's commitment to maintaining a secure, compliant, and trustworthy platform for all our users.

99% of crypto users risk their crypto to hacks due to poor wallet hygiene. Here are 7 essential tools everyone needs to secure their wallets: 1/ Create a secure multi-sig wallet with Safe Use it for the crypto that you are holding in the long term. It acts as a secure banking vault requiring several wallets (private keys) to authorize any transaction. So even if one of the wallets gets compromised, your funds are still safe. 2/ Get a cold wallet like Ledger or Trezor Hot wallets like Metamask that are always connected to the internet are much riskier. Get a cold wallet that's not connected to the Internet and use it as a secure storage for your assets. It can also act as one of the wallets for your multi-sig. 3/ Delegate authority of your multi-sig or cold wallet with Delegate (.xyz) NEVER use your secure multi-sig or cold wallet to interact with suspicious protocols. Always use a new risky wallet for that. And delegate the authority of your safe multi-sig/cold wallet to this risky wallet in case you need to claim an airdrop or mint an NFT. 4/ Remove unlimited token spend approvals with Revoke (.cash) Many DeFi protocols ask for unlimited token spend approvals. So if the protocol gets compromised, your wallet can be drained. Review and remove any unnecessary approvals granted in the past. 5/ Use a portfolio tracker like CoinStats to monitor your DeFi positions Track all your on chain activity in DeFi in one place. Spot any suspicious or unusual on-chain activity early on and take action. 6/ Use Wallet Guard to preview your transactions Preview all transactions and understand what exactly you are approving. 7/ Exercise caution and NEVER do any of the following: - Download any suspicious files sent on Telegram/social media DMs - Click on any Airdrop announcement/crypto winning emails - Use weak and easy-to-guess passwords Use these tools and best practices to secure your crypto wallets against hacks and phishing scams. P.S. Any other good tool that I missed? Let me know below. Follow 👉 Aram Mughalyan & share ♻️ this post if you like it.

Digital wallets are miles ahead of traditional card payments when it comes to security due to enhanced security features like tokenization, biometric authentication, and encryption - but the way they protect your data is slightly different. Here’s the breakdown: 🍎 Apple Pay:  ↳ Uses device-based tokenisation so your actual card number is never stored or shared ↳ All data is stored locally on the device in the Secure Enclave ↳ Doesn’t track your transactions or link them to your Apple ID ↳ Biometric authentication (Face ID / Touch ID) is required for each payment ✅ Merchants never see your real card details ✅ Apple never knows what you bought or where 🔐 Google Pay: ↳ Also uses tokenisation  ↳ Stores some data in the cloud, and Google may collect transaction info (which can be used to personalise services) ↳ Biometric authentication is still standard, but setup can vary by Android device ↳ Google has broader integrations which can be a convenience win but raises more questions around data use and privacy So which is more secure?  👉 Both are secure, but Apple Pay edges ahead in terms of privacy-first design and keeping your financial data out of the cloud.  👉 Google Pay is still a safe choice, especially if you're in the Android ecosystem, but just be mindful of the data-sharing trade-offs. Which one are you using and was security a consideration when you chose it?

Uptick in Fake Ledger Websites (Phishing) Recently, we observed an increase in fake cryptocurrency trading websites. Cybercriminals use tools like HTTrack to clone legitimate websites, modifying the backend to steal users’ wallet private keys or keystore JSON files. These fraudulent websites prompt users to connect their wallets to proceed. They claim to support various wallet types, trick the users to enter their private keys or upload their keystore files. Once submitted, the stolen data is transmitted to the cybercriminals, often via Telegram. We have detected that several users have fallen victim to these attacks and submitted their private keys and keystores. The rise in fake crypto trading websites poses a significant threat to users' assets. These phishing sites exploit trust by mimicking legitimate platforms and stealing sensitive wallet information. Awareness and vigilance are key to combating these threats. Always verify the authenticity of a website before entering private keys or uploading keystore files, and remember: reputable services will never ask for this information directly. Stay informed, stay secure. Fake website: firstledgerapp[.]net newtrumpera[.]com

Last month, India’s biggest crypto exchange CoinDCX lost ₹368–378 crore. Not because of a customer hack. But because an internal wallet got compromised. Here’s how it played out 👇 → Attacker hijacked a liquidity wallet → Bridged funds (Solana ↔ Ethereum) → Laundered via Tornado Cash Customer wallets? ✅ Safe. But the breach? ❌ Server-side, deep inside their own infra. Most teams think “cold storage = safe.” Reality check: internal wallets are the real blind spot. Here’s what 99% of teams don’t do when it comes to high-risk wallets,  automation accounts, and liquidity ops. So here’s a 6-point Internal Wallet Risk Audit you can run this week: 𝟭. 𝗪𝗮𝗹𝗹𝗲𝘁 𝗥𝗼𝗹𝗲 𝗠𝗮𝗽𝗽𝗶𝗻𝗴 List every wallet → check what it should do vs what it can do. ⚠️ Red flag: liquidity wallet can move treasury funds. 𝟮. 𝗧𝗿𝗮𝗻𝘀𝗮𝗰𝘁𝗶𝗼𝗻 𝗟𝗶𝗺𝗶𝘁𝘀 + 𝗩𝗲𝗹𝗼𝗰𝗶𝘁𝘆 Can the wallet push $10M at once? Or 10x in 2 min? ⚠️ Red flag: no daily caps or auto-delays. 𝟯. 𝗔𝗽𝗽𝗿𝗼𝘃𝗮𝗹 & 𝗦𝗶𝗴𝗻𝗶𝗻𝗴 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀 Who signs off on big moves? Forced multi-sigs? JIT approvals? ⚠️ Red flag: backend automation with always-on keys. 𝟰. 𝗕𝗿𝗶𝗱𝗴𝗲 𝗕𝗲𝗵𝗮𝘃𝗶𝗼𝗿 𝗪𝗮𝘁𝗰𝗵 Monitor transfers across chains. Auto-pause weird routes/off-hours. ⚠️ Red flag: first-time bridge + big amount + midnight = no alert. 𝟱. 𝗞𝗲𝘆 𝗥𝗼𝘁𝗮𝘁𝗶𝗼𝗻 𝗗𝗶𝘀𝗰𝗶𝗽𝗹𝗶𝗻𝗲 How often do you rotate keys? Retire old ones? ⚠️ Red flag: stale keys from 2022 still active. 𝟲. 𝗥𝗲𝗱 𝗧𝗲𝗮𝗺𝗶𝗻𝗴 ‘𝗥𝗼𝗴𝘂𝗲 𝗪𝗮𝗹𝗹𝗲𝘁𝘀’ When did you last simulate a compromised wallet? ⚠️ Red flag: confident → but never tested. Know friends or colleagues trading crypto?  ♻️ Re-share this with them, they should know where the real risks are. This wasn’t a crypto-specific failure. It was a visibility, privilege, and control failure. What are your thoughts on the CoinDCX breach? #CyberSecurity #CryptoSecurity #BlockchainSecurity #CryptoNews #DataBreach #HackPrevention #Web3Security #CloudSecurity #InfoSec #CryptoHack #CoinDCX #SecurityAwareness #FinTech #RiskManagement #SecurityTips #HackingNews