The Cyber Exposure Score is a published 0–100 formula built only from publicly observable signals. How this is calculated.
This domain scores better than 17% of the 425 Manufacturing organisations we track (cohort median 78). The sample is seeded from public incident data, not a random cross-section of the sector.
Posture summary
Email authentication
SPF ✓ ~all DMARC ✗ DKIM ✗ DNSSEC ✗DNS hygiene
2 nameservers · Cloudflare single DNS provider CAA ✗ IPv6 ✓Web & transport hygiene
HTTPS redirect ? HSTS ✗ CSP weak security.txt ✗TLS / certificate
TLS TLSv1.3 54d to expiryInternet exposure
0 open ports 0 KEVBreach metadata
0 public breaches on metaencryptor leak siteDomain & hosting
2 public hostnames registered 1999Also analysed: www.sfa.co.kr
sfa.co.kr and www.sfa.co.kr each answer on their own, so both are covered. The domain-level findings above apply to both; these are www.sfa.co.kr's own website checks.
score 70/100 · poor TLS TLSv1.3 54d to expiry HTTPS redirect ✓ HSTS ✗ CSP weak CDN edge — its 13 ports are the CDN's 0 KEVRansomware leak-site listings (1)
This domain is named on the public leak site of a ransomware group. A leak-site post is a claim published by the group — not a verified fact, and not a statement by this organization. Groups list victims who did not pay, overstate what they hold, and occasionally name the wrong company. What is certain is that the listing itself is public.
| Group | Listed | Sector |
|---|---|---|
| metaencryptor | 2026-09-15 | Manufacturing |
Leak-site postings are collected here from 2026-07-30 onwards; an earlier listing would not appear above.
Source: Ransomware.live
Public attack surface (2 hostnames in Certificate Transparency)
Hostnames this organization published in public TLS certificates. Passive OSINT — nothing was scanned; a wildcard certificate is in use, so the real footprint may be larger.
The hostname inventory — which forgotten hosts exist and where — is part of the complete audit for this domain.
Lookalike domains (20 registered of 67 checked, 1 serving no website)
Registered permutations of this domain. Existence is a fact, not an accusation — ownership and intent are not assessed. Those able to receive mail are the ones usable for invoice fraud and phishing. The Risk score (0–100) is a published formula weighing mail capability, registration age, spelling, what the homepage shows and phishing-feed hits, reduced when a name looks brand-owned (same registrar/nameservers, a redirect to this domain) or merely parked. How this is calculated.
| Domain | Type | Mail-capable | Registered | Risk |
|---|---|---|---|---|
| sfa.app | tld | yes | 2025-07-22 (469d) | 66 high |
| sfa.net | tld | yes | 2002-05-01 (8952d) | 66 high |
| afa.co.kr | keyboard | yes | — | 66 high |
17 further registered lookalike(s), 15 of them able to receive mail. The full list, with mail capability for each, is part of the complete audit.
Recommendations
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highEnforce DMARC
No enforcing DMARC policy was observed. Publish a DMARC record and move to p=quarantine then p=reject to reduce spoofing.
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mediumEnable DKIM
No DKIM record was found on common selectors. Enable DKIM signing.
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mediumEnable DNSSEC
DNSSEC signing was not detected for this domain.
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criticalTreat data published on a leak site as disclosed
This domain is named on metaencryptor's public leak site on 2026-09-15. A leak-site post is a claim published by the group, not a verified fact — but the post itself is public, and if it is accurate the data is already out. Confirm the claim, then work from the assumption of disclosure: rotate every credential that touched the affected systems, invalidate active sessions, and check your notification duties under GDPR Art. 33/34.
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criticalReset credentials seen in infostealer logs
Public infostealer telemetry associates 9 employee credential set(s) with this domain — passwords captured from infected devices, which bypass password policy and often session-hijack past MFA. The most recent dates from 2024-01-19. Most commonly Generic Stealer. Force a reset for the affected services, invalidate active sessions, and check the devices themselves.
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mediumStrengthen password requirements
100% of the exposed employee passwords analysed rate as weak or very weak. Raise minimum length and screen new passwords against breach lists.
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highMonitor lookalike domains
15 registered lookalike domain(s) can receive mail, which is what makes them usable for invoice fraud and credential phishing. 1 of those serves no website at all but can already receive mail, so a reply sent to it would be delivered although nothing is visible in a browser. With no website there is nothing to inspect, so watch for DNS or web changes rather than treating it as harmless. Monitor them and consider defensive registrations.
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highGet a full security audit
Multiple exposures were detected. A professional audit can prioritize remediation.
Sources: Ransomware.live · Have I Been Pwned (CC BY 4.0) · Shodan InternetDB
Refresh this report
Run a fresh free report for sfa.co.kr: live results, every fix in priority order and a PDF to share. The complete audit adds the evidence and the full lists behind each finding.
Open the free reportAll information is aggregated from public sources for awareness only and does not constitute an accusation or a security assessment. No personal data or credentials are published.