io-sign.com is an impersonation phishing site. The name points at a signing step, and its listing by MetaMask and SEAL indicates it targeted cryptocurrency wallet users. PhishDestroy first flagged it on 2026-08-31. The site went offline on 2026-09-13 and was still dead, with its content blocked by the provider, at the last check on 2026-10-19.
How the scam works
Impersonation pages copy a trusted service's look closely enough that visitors act without double-checking the address. Crypto-focused versions usually ask the visitor to connect a wallet and approve a signature or transaction framed as verification, a login or a routine "sign" step. That approval can hand an attacker control over tokens, or the page may ask for a seed phrase outright. The last page title we captured was "Suspected Phishing | Cloudflare", which is Cloudflare's own warning screen rather than the impersonated content, while our classification is impersonation phishing.
Evidence
On 2026-09-12, 6 of 89 VirusTotal engines flagged the domain: alphaMountain.ai, Chong Lua Dao, CRDF, Forcepoint ThreatSeeker, Gridinsoft and SOCRadar. That count is modest, but these vendors work independently, and the domain also appears on the MetaMask and SEAL blocklists alongside PhishDestroy. Wallet-side blocking matters most for this threat because it warns users at the point where they would connect. Three AlienVault OTX pulses also reference the domain.
Infrastructure
The domain was registered through Global Domain Group LLC and sat behind Cloudflare's network on an address geolocated to Canada. That means the real origin server was hidden from view. The provider's phishing interstitial and the later provider block show the takedown came at the network edge. The Google Trust Services certificate is the kind issued automatically to Cloudflare-fronted sites, so the padlock said nothing about who ran it. The site lasted about two weeks between our first detection and going offline.
What to do
If you connected a wallet to io-sign.com, review and revoke any token approvals or permissions granted around that time with a reputable approval checker. Move remaining funds to a fresh wallet if you signed anything you did not understand. If you typed a seed phrase into the site, treat that wallet as compromised and transfer everything to a new one created with a new phrase. Defenders should block the domain at DNS and proxy level and search logs for visits from late August through mid-September 2026.
Saved certificate metadata. Certificate dates without a timezone are shown as stored. Transport encryption does not establish that the site is trustworthy.
Observed timelinelast reachable: 2026-09-15 22:18:00 UTCcurrent episode first observed: 2026-10-01 01:43:30 UTCobserved RIP window: 2026-09-15 22:18:00 UTC → 2026-10-01 01:43:30 UTC · 363.43hmidpoint estimate ≈ 2026-09-23 12:00:45 UTC · precision low · basis bounded
Availability, content, DNS and registration are independent evidence layers. NXDOMAIN, an unreachable origin or missing content alone does not prove registrar action. A registrar or provider is credited only when a direct technical marker identifies that actor. Report causality is shown separately.
기술 · 4 identified
H
HSTS
보안
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Template-based draft · optional AI wording assistance requires separate consent
AI 지원 초안 - 사고 세부정보는 AI 제공업체에서 처리됩니다. · 직접 검토하고 제출하세요.
After a phishing incident
피해자를 위한 권고 사항 및 조언
Choose the steps that match what you shared. Keep a copy of this report alongside your own records.
지금 당장 어떻게 해야 할까요?
긴급
Stop using the suspicious site. Open the real service through its official app or an address you already trust.
모든 비밀번호 변경 — 이메일, 익스체인지 계정 등, 동일한 비밀번호를 사용하는 모든 것
2단계 인증 활성화 인증 앱(SMS 제외)을 사용합니다. SMS 기반 복구 기능을 비활성화하세요.
카드 동결 피싱 사이트에 은행 계좌 정보를 입력한 경우
보고서를 작성하기 위해 어떤 정보를 수집해야 할까요?
FBI 지침
Keep original emails, receipts, messages and screenshots in a secure place. A factual timeline helps the receiving authority understand what happened. IC3 evidence guidance ↗
Payment records — if you paid, save the receipt, amount, date, payment provider and recipient details.
정확한 날짜 및 시간 — 각 거래 내역 및 사기범과의 첫 접촉 시점
스크린샷 — 사기 웹사이트, 채팅 메시지, 이메일, 지갑 거래, 소셜 미디어
모든 URL 및 도메인 사기꾼이 사용한 (다음과 같은 것들을 포함하여 io-sign.com)
커뮤니케이션 — 사기꾼이 사용한 이메일, 문자, 전화번호, 사용자 이름
비록 모든 세부 사항을 알지 못하더라도 — 어쨌든 신고를 하세요. 부분적인 정보라도 수사에 도움이 됩니다.
Your bank or payment provider — contact its fraud team promptly through official contact details if money or card information was exposed.
지역 경찰 — 비록 당장 조치를 취할 수는 없더라도 공식 기록을 남깁니다
A report is not a guarantee of recovery or investigation, but prompt, accurate transaction data can help authorities and service providers trace the incident.
How do phishing scams typically work?
가짜 웹사이트 — 도메인을 약간만 변경한, 정식 사이트와 픽셀 단위로 완벽하게 일치하는 복제 사이트
pig butchering — Telegram·왓츠앱·데이트 앱을 통해 몇 주에 걸쳐 신뢰를 쌓은 뒤, 돈을 훔쳐갔다
회복 사기 — fraudsters pose as recovery agents and demand upfront fees. Never share a seed phrase or pay before independently verifying the provider
AI를 이용한 사기 — 딥페이크, 자동화된 피싱, AI로 생성된 사이트 등으로 인해 사기 행각을 적발하기가 더 어려워지고 있다
앞으로 어떻게 하면 스스로를 지킬 수 있을까요?
공식 사이트 즐겨찾기 추가 — 이메일, DM 또는 광고에 포함된 링크는 절대 클릭하지 마세요
도메인 확인 — 확인하기 PhishDestroy 상호작용을 시작하기 전에 HTTPS, 맞춤법, 도메인 등록 기간을 확인하세요.
About this reportSources, observation dates and corrections
This report combines saved page captures, registration and network records, scanner results and PhishDestroy reporting history. Each source keeps its own observation date. Open a source report to inspect the original result.
The AI-assisted analysis was written on . It describes the evidence available at that time; later source checks can change.
A capture documents what was shown. A scanner result records that provider’s assessment at the time of its check. Neither a valid certificate nor a zero-detection result is a guarantee of safety.
(US)
