Crypto Security Basics

Seedless cold wallets feel like the future of crypto. No more writing down 24 words. No more worrying about losing a scrap of paper. Just log in, recover, and move on. It sounds perfect. But once you look past the convenience, a different picture emerges.

It sounds unbelievable at first. A fake app, sitting right inside the Apple App Store, managed to trick people into giving away millions in crypto. No complicated hacking. No breakthrough exploit. Just a simple trick that worked far too well.

Crypto headlines often focus on hacks, scams, or exchange failures. This recent story feels different. It reads more like a thriller than a tech incident. A man has accused his estranged wife of using hidden CCTV cameras inside their home to capture his hardware wallet recovery phrase. He claims she then moved more than 2,300 Bitcoin, worth about $172 million, without his permission.

Crypto security often feels abstract until a real discovery changes the conversation. Recently, Ledger’s security research team, Donjon, revealed a serious vulnerability affecting certain Android devices powered by MediaTek chips.

A new scam is circulating among cryptocurrency users, and it looks surprisingly real. Victims receive a physical letter that appears to come from the hardware wallet company Ledger. The letter warns about a supposed “Quantum Resistance Security Update” and urges the recipient to scan a QR code.

Crypto security sometimes sounds complicated. Cold wallets, private keys, multi-sig, air-gapped devices. Yet the biggest losses often come from very simple mistakes. A recent case in South Korea proves it.

Ledger just dropped a thought-provoking educational video titled “AI Agent With a Wallet. What Could We Possibly Lose?” It dives straight into a future that feels closer than most people expect.

Charles Guillemet, CTO of Ledger, explains Ledger is critical for digital ownership.

On January 10, 2026, the cryptocurrency world was shaken by a social engineering attack that cost someone more than $282 million worth of Bitcoin and Litecoin.

Phishing is one of the biggest threats in crypto today. It does not rely on hacking blockchains or breaking encryption. It relies on tricking people (social engineering).

A compromised version of the Trust Wallet Chrome extension was released to users, containing malicious code that harvested sensitive wallet data. This version, identified as 2.68, was distributed through the Chrome Web Store and silently stole the seed phrases of users who unlocked or imported wallets.

A crypto trader lost $50 million in an address poisoning attack recently. Address poisoning is one of the fastest-growing crypto scams, and it does not rely on hacking, malware, or broken blockchains.