সিম সুইপ আক্রমের বাস্তব দুর্ঘট

##আমি ছিলাম লক্ষ্য

গত चমুবার 3:15 PM EST-এ,আমি SMS-এর एকটি अल्प-कोड पाए जो कि Venmo-एर ‘অসংখ্যা’–তখন WhatsApp-এও एकटि कोड प्रশ्न। कয়েদ मिनट्स, एकটि कল: Caller ID spoofed as Coinbase Support. The voice? Polished American English. The name? ‘Mason.’ The threat? Account lock in 24 hours unless I moved assets to ‘Coinbase Vault’ via vault-coinbase.com.

Script Unfolds

They didn’t ask for my seed phrase outright. That’s too crude. Instead, they fed me half-truths: partial SSN digits, verified email domains ([email protected]), even referenced real services like TradingView and MetaMask—all to build credibility before the trap snapped shut.

The Trap Door

The domain? Registered one month ago. SSL cert? Valid—but issued by a third-party CA impersonating Coinbase’s infrastructure. When I checked WHOIS data: zero association with Coinbase Inc. No official app redirection. No legitimate API linkage.

The Real Red Flags

• Never call first: Legit exchanges don’t initiate contact. • Never use personal phone lines for security alerts. • Never push you off-platform to ‘better’ solutions. • Fake case numbers are not real tickets—they’re psychological anchors. • SafePal? A real wallet—but weaponized as plausible cover.

My Countermove

I hung up. Then logged into Coinbase.com directly—via bookmarked URL—not search engine results. True support confirmed: no breach, no pending reset, no such case number existed. I revoked all third-party API keys and enabled transaction-level MFA on every asset. I now use only cold wallets for >$10K holdings—offline is non-negotiable.

Why This Works So Well

This isn’t brute force hacking—it’s social engineering at PhD level. They weaponize your trust in institutions you’ve spent years learning to respect. You’re not being hacked—you’re being understood. If you think you’re too smart to fall… that’s exactly when you will.