Encryption

Crypto holders are facing a growing threat from a sophisticated form of phishing that swaps letters in website addresses for nearly identical lookalikes, tricking users into handing over their digital assets.

Known as Punycode phishing, the tactic has led to significant losses—even for vigilant users—by mimicking legitimate cryptocurrency exchange sites with deceptive domain names.

Cybercriminals exploit the similarity between characters from different alphabets, such as replacing Latin letters with visually identical Cyrillic ones.

These fake websites are almost indistinguishable from real ones, making it extremely difficult to spot the fraud. Recent reports reveal that even browser recommendation systems, such as Google Chrome’s, have directed users to these deceptive domains.

In one widely cited case, a user was guided to a fraudulent site impersonating the crypto exchange ChangeNOW and subsequently lost over $20,000. The incident has raised questions about browser accountability and the urgency of protective measures against increasingly advanced phishing strategies.

US regulators, including the Federal Trade Commission (FTC), the North American Securities Administrators Association (NASAA), and California’s Department of Financial Protection and Innovation (DFPI), have issued ongoing warnings about crypto scams.

While none have specifically addressed Punycode-based attacks, their advice—careful URL scrutiny, skepticism of unsolicited links, and immediate fraud reporting—remains critical.

As phishing methods evolve, users are urged to double-check domain names, avoid clicking unverified links, and consult tools like the DFPI Crypto Scam Tracker. Until browsers and platforms address the threat directly, user awareness remains the most effective defence.

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