bitcoinonbase[.]fyi

The domain bitcoinonbase.fyi is a phishing site engaged in brand impersonation targeting Base, a cryptocurrency platform. It presents itself as a legitimate service under the name 'Bitcoin on Base' but is designed to deceive users into disclosing sensitive information or transferring assets. No drainer kit was identified, and the site is currently taken offline, though its prior activity remains a concern for potential victims.

Technical indicators confirm bitcoinonbase.fyi was registered through NameCheap, Inc. on February 21, 2026, and resolved to the IP address 66.33.60.34, hosted on Amazon.com, Inc. infrastructure (AS16509). At the time of analysis, 0 of 95 VirusTotal vendors flagged the domain, and Google Safe Browsing did not list it, though it appeared on 4 security blocklists, including PhishDestroy, Polkadot, Enkrypt, and Codeesura. The SSL certificate was issued by R10, and the observed page title was 'Bitcoin on Base'. Technologies detected included Vercel and HSTS, with a Gridinsoft trust score of 0/100.

Users who interacted with bitcoinonbase.fyi should assume their credentials or wallet details may be compromised. For cryptocurrency-related exposure, revoke any token approvals granted to unknown contracts and transfer funds to a new wallet. For login credentials, change passwords immediately and enable two-factor authentication on all accounts. Report the domain to the impersonated brand (Base) and submit it to platforms like Google Safe Browsing, PhishTank, or local cybersecurity authorities to prevent further abuse.